Seiko Cal. 6635 - 634

Seiko 6635-634

This Hand-Winding model from 1973 features a 37mm Titanium case. It features a Black dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-2a61838dffec]

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
37mm
Case Thickness
9.6mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
170m
Dial Color
Black
Jewels
20j
Frequency
28,800 bph
Power Reserve
48 hours
Year
1973

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