The style is based on Seiko's classic diving watch "Big MM", and the one-piece case has no bottom cover structure. This time, our material is tin bronze CUSN8 material, which will become retro with use. The hands, dial hour markers and chronograph lap luminous are all toned in a retro color. The tin bronze head is specially made to match the case and strap, and the connection is seamless.

San Martin Vintage Bronze Diving Watch Automatic Mechanical Watch SN038

Watch Specification:
Brand: San martin
Model: SN038-Q
Movement: domestic PT5000 and imported SW200 [automatic mechanical movement]
Case: CUSN8
Glass: sapphire glass + anti-reflection coating
Dial: blue, green sun-pattern enamel surface and matte black + real nail hour markers
Pointer: beveled on both sides of the middle brushed
Luminous: C3 Super Luminous
Crown: screw crown
Bottom cover: One-piece shell without bottom cover structure, hydraulic shark pattern
Strap: genuine leather strap
Buckle: Bronze pin buckle
Water Resistant:30 Bar=300 Meters
Watch Dimension:
Case diameter: 44mm( without crown)
Lug length: 53mm (upper lug to lower lug)
Case thickness:  15mm (including mirror)
Lug width:22mm
Weight: about 150g