Chronometer Seamasters

Seamaster chronometers are an odd bunch. Chronometer certification was mostly reserved for the Constellation line-up, and by default, any Chronometer Seamaster is going to be more rare than a Constellation. In addition, they are also less expensive than Constellations making them attractive for entry-level collector. Chronometer Seamasters come in three movement categories distinguished by their […]

Omega Aqua Terra Railmaster 2504.52

Manufacturer Omega Reference 2504.52 Movement 2402 (ETA 2892-A2) Diameter 36,2mm Thickness 11mm Lug to lug 44mm Lug width 19mm Material Stainless Steel Water Resistance 150m Basic information Omega Aqua Terra Railmaster is one of the first Omega Railmaster reissues from the early 00s. The watch features no-date 2403 movement and 3-6-9 dial present in the […]

Rolex GMT Master 16700 & 16710 cheat sheet

Basic Information Name Rolex GMT Master Rolex GMT Master II Reference 16700 16710 Movement 3175 3185 Diameter 40mm 40mm Thickness 11,8mm 12,4 Lug to lug 47,5mm 47,5 Lug width 20mm 20mm Material Steel Steel Water Resistance 100m 100m Basic information The two watches are very similar, but they have a few key differences. The movement […]

Sinn 156 and Sinn 156b

Manufacturer Sinn Reference 156b Movement Lemania 5100 Diameter 43mm Thickness 15mm Lug to lug 51mm Lug width 20mm Material Stainless Steel Water Resistance 10bar Service price 600€-700€ Basic information Sinn 156 is often referred as the successor of the Heuer bund, a watch used by German airforce pilots. Unlike the Heuer Bund, the Sinn 156 […]

Sinn 8820T

Overview The 39mm Sinn 8820T comes in three different dial variants. Plain sterile dial, yellow U-Boat dial and red U-Boat dial. Unconfirmed information says that the U-boat dials were limited to 200 watches each and only for the Asian markets and the sterile dials were distributed globally. Manufacturer Sinn Reference 8820T Movement ETA 2892-A2 Diameter […]

Fortis Easy Math Ref. 7242

Overview Fortis Easy Math is a quirky 70s watch to the bone. The watch has a cushion case, two crowns and a busy dial. The dial has tritium plots, beautiful deep blue color, elevated disc with compass cardinal directions and a rotating slide rule bezel. Manufacturer Fortis Reference 7242 Movement FHF-ST96 Diameter 37mm Thickness 12mm […]

Blushark Knitweave Review

The Blushark Orca is one of the best NATO straps I have had and I reviewed it very positively here. Based on the Blushark Orca, I had very high hopes for the Blushark Knitweave. The Blushark Knitweave straps come with either 20mm and 22mm width and are supplied with brushed hardware. The straps come in […]

Sinn 158 on a bracelet

History Sinn has made multiple successors to the 1550 sg produced by Heuer and Sinn. The Sinn 1550sg was directly succeeded by Sinn 156 and Sinn 156b and then followed by Sinn 155 and Sinn 158. Whereas the Sinn 155 is more true to the 1550 sg, the Sinn 158 sits somewhere between 1550 sg […]

Tag Heuer 980.023 / 180.023 / 180.123 Review

Heuer (subsequently Tag Heuer) made some amazing dive watches. This review focuses on the dive watch which was in production for nearly 20 years in different variations and is known as ‘Deep Dive’ or ‘Spirotechnique’. This is certainly not the first post about this topic and definitely not the last. Diameter 42mm Lug to lug […]

Blushark Orca Review

Introduction In the past few years, we have seen the introduction a few new Nato strap styles such as Tudor knit straps, Omega seatbelt straps, Marine Nationale stretch straps and perlon straps. Compared to a standard Canvas NATO strap, these new strap styles are a little different and aim to provide better comfort, slimmer profile, […]


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