Rolex Air-King: Still flying

Rolex Air-King in 40mm stainless steel. Introduced in 2016. Reference (case – bracelet): 116900 – 71200. Powered by the Manufacture Rolex Calibre 3131 automatic movement, COSC-certified. Superlative Chronometer (COSC and Rolex certification after casing). Water-resistant to 100m (330 ft). Photo: © TANG Portfolio / TimeWerke.

The Rolex Air-King, introduced at the 2016 BaselWorld watch fair, has prominent features such as the 3, 6 and 9 Arabic hour numerals, combined with the smaller numerals for the minutes (in five-minute intervals, that is 5, 10, 20, 25, etc). What is probably more appealing for collectors is the “Air-King” lettering; these are the same fonts used for the … More

Rolex Submariner Ref. 5517/5513 MilSub: Military Provenance

Rolex Ref. 5517/5513, made in around 1972 and issued in 1997, it is home to the Calibre 1520 automatic movement. It comes in a 39mm diameter case in stainless steel and is water-resistant to 200m. The case back is engraved: 
Estimated value: Between £50,000 and £70,000 / SGD110,000 and SGD150,000. Offered for sale at Bonham’s 16 December 2015 auction in London. © Bonhams

Sorry folks, watching television is bad for you. If you are over 25 years old, every hour spent watching TV reduces your life expectancy by around 22 minutes (to be precise, 21.8 minutes) on average, according to the research article, Television viewing time and reduced life expectancy: a real life table analysis, found in archives of biodmedical literature found in … More

The Deep Sea: What we do not know

Anemone with hermit crab – on display at The Deep exhibition at the ArtScience Museum, Marina Bay Sands Singapore. The exhibition opened in early June 2015 and will be on till 27 October 2015. According to the explanation that came with this exhibit, these anemones are always with hermit crabs and it is still not known how their relationship begins. What is know though, is that the anemone Epizoanthus, a colony of several organisms, gains from the movement of its host – the hermit crab, from being a sedentary animal to one that is mobile which then increases its chances of finding food. Photo: © TANG Portfolio. 2015 ArtScience Museum. Image taken with a Leica D-Lux 5

While you may know that the oceans cover 71% of the Earth’s surface, are you aware that it contains around 97% of our planet’s water? Do you also know that 95% of our oceans remain unexplored? Or, that more men have landed on the Moon than those that have dived into the deepest areas of our oceans? The point is, … More

Spinning the Rolex GMT-Master Yarn

The author’s Rolex GMT-Master reference 16700 powered by the Calibre 5175 automatic movement, it comes with the reference 78790 Oysterlock. Acquired from Dickson Watch & Jewellery Co in 1997. Photo: © TANG Portfolio

A couple of years ago, when a good friend asked what accessories came with the Rolex GMT-Master reference 16700 , I must admit to being stumped. Being the hardcore Rolex collector that he is, he gave a smug smile and began spewing out terms like the Jubilé and Fliplock bracelets. The GMT-Master reference 16700, made between 1989 and 1999 which … More

Rolex Oyster Perpetual Yacht-Master: The black belt

The Rolex Oyster Perpetual Yacht-Master (Reference 116655) introduced in 2015, features a black dial and the Calibre 3135 automatic movement in a 40mm case in 18K Everose gold. The black ceramic bezel has matt black Cerachrom inserts. Two versions are available: one in 40mm and the other in 37mm (Reference 268655). Shown above is the 40mm model and it is priced at CHF23,800. Photo: © TANG Portfolio. Elfa / Timmy. 2015 BaselWorld

At the annual BaselWorld watch fair in March 2015, the Rolex Yacht-Master collection added another family member – one in a new black and Everose gold. The Rolex Yacht-Master story began in 1992 and it was known as the “sailors’ watch”. The early model, the ref. 16628, water-resistant to 100 metres, was in yellow gold and was powered by the … More

Rolex Milgauss: Generation Z

The 40mm Rolex Milgauss (Reference: case: 116400 GV, bracelet: 72400) launched at the 2014 BaselWorld watch fair houses the Calibre 3131 automatic movement and features the Z blue dial. It is water-resistant to 100m (330 feet). Priced at CHF7,800. Photo: © TANG Portfolio. Elfa / Timmy. BaselWorld 2014

In 1956, the Rolex Milgauss was introduced and it was targeted at engineers and technicians, notably those who were regularly exposed to magnetic fields due to the nature of their profession. The Milgauss was designed to resist strong magnetic interference of up to 1,000 gauss. The “Mil” came from “mille”, the French word for “thousand” while “gauss” is a measurement … More

Rolex Oyster Perpetual GMT-Master II: with flying colours

Showcased at the 2014 BaselWorld watch fair: the 40mm Rolex GMT-Master II Reference 116719 BLRO – 78209, water-resistant to 100m and powered by the Calibre 3186 automatic movement. It features the half-red, half-blue Cerachrom bezel and is in 18K white gold. Priced at CHF36,500 (Swiss francs) or around US$41,100 / SGD52,000 / MYR135,000. Photo: © TANG Portfolio. 2014 BaselWorld

The Rolex Oyster Perpetual GMT-Master with its iconic bezel in red and blue is back (Note: The original GMT-Master was launched in 1955). This time, the half-red, half-blue bezel on the 2014 GMT-Master II showcased at the 2014 BaselWorld watch fair is in Cerachrom. This 2014 GMT-Master II model features the second time zone display (with the 24-hour indication on … More

Rolex Sea-Dweller ref. 1665 Mark II: Mark your dates!

This Rolex Oyster Perpetual Sea-Dweller ref. 1665 Mark II with tropical dial, ref. 1665, is being offered by Swiss Auctions during its auction on 28 November 2013 at the Ritz-Carlton Hotel in Kuala Lumpur, Malaysia. The asking price for this piece, Lot 523, is between US$32,000 and US$38,400 or between MYR108,800 and MYR130,600 (Malaysian Ringgit) [Source: Swiss Auctions catalogue]. Photo: © Swiss Auctions

It is simply described as the Rolex Oyster Perpetual Sea-Dweller Ref. 1665 with a brown dial powered by an automatic movement and housed in a 40mm diameter stainless steel case in the catalogue. This is Lot 523 and it is being offered for sale by Swiss Auctions, a unit of DKSH, on 28 November 2013 during its “Important Timepieces Malaysia … More