San Martin San Martin GR5 Titanium 39mm Sunray Dial Dive SN0121T
$278Sold out
Case
- Diameter
- 39mm
- Material
- Titanium
- Water resistance
- 300m
Crystal & dial
- Crystal
- Sapphire
Movement
- Caliber
- Seiko NH35
- Type
- Automatic
Seiko
Seiko's third-party supply version of the 4R35, sold to external watch brands and modders worldwide. Adds hacking and hand-winding over the 7S26 it effectively replaced. The NH35 has become the default automatic movement for watch modding and microbrand watches, thanks to its low cost, reliability, and wide availability of compatible parts including dials, hands, and cases in the Seiko-compatible format.
Design language
- Case shape
- round
- Dial style
- matte
- Bezel
- rotating
- Bracelet
- lug-attached
- Hands
- baton
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Retail$278
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Owners widely praise the San Martin GR5 Titanium 39mm Sunray Dial Dive SN0121T for its lightweight grade 5 titanium construction, which feels substantial yet significantly lighter than steel, and its well-executed finishing. The on-the-fly adjustable clasp and smooth second-hand sweep are also highlighted as positive attributes. However, some owners note that the titanium may scratch easily and find the case and clasp edges sharp, with one owner describing the bracelet as jangly with loose tolerances. Timekeeping on the NH35 version is criticized by some, while others report the Sea-Gull ST2130 movement is audibly noisier than steel variants and may require regulation by San Martin. On balance, owners rate the San Martin GR5 Titanium 39mm Sunray Dial Dive SN0121T highly for its premium titanium feel and finishing at its price point.
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