Seiko Cal. 5631 - 649

Seiko 5631-649

This Solar model from 1974 features a 35mm Hardlex-Coated Steel case. It features a Black dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-11f4b0c5f1e0]

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
9.2mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
110m
Dial Color
Black
Jewels
25j
Frequency
36,000 bph
Power Reserve
70 hours
Year
1974

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