About the brand
Shop affordable luxury watches from Sheffield, where heritage craftsmanship meets modern performance.
VIEW BRAND About the watch
For collectors, the Deep Gray 300 is a straightforward, tool-oriented automatic diver distinguished by its 42 mm × 13.8 mm steel case, 300 m rating, sapphire crystal, and NH35 movement. Its 22 mm lugs and nylon strap reinforce its practical, overbuilt diving-watch character, while the absence of a verified limited-edition designation suggests it should be assessed primarily as a production tool watch rather than a scarcity-driven collectible.
- Movement
- automatic
- Caliber
- NH35
- Case size
- 42mm
- Case thickness
- 13.8mm
- Case material
- 316 stainless steel
- Crystal
- sapphire
- Dial colour
- Deep Grey
- Lug width
- 22mm
- Water resistance
- 300m / 30 ATM
VIEW MODEL PAGE About the strap
Isofrane is an iconic dive-watch strap brand, renowned among collectors for its distinctive ladder-style, ventilated rubber straps widely used on professional dive watches from the 1960s and 1970s. Original straps were associated with brands like Omega, Aquastar, and Tissot, becoming collectible after production ceased in the 1980s. Revived in 2010 by Synchron Uhren Manufaktur GmbH, the brand now crafts natural-rubber, silicone-free dive straps in Italy, offered in sizes like 20mm, 22mm, and 24mm. The modern 1968-style reissue is celebrated for its comfort, softness, durability, and faithful tool-watch aesthetic.
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