Seiko Cal. 5637 - 439

Seiko 5637-439

This Hand-Winding model from 1967 features a 41mm Hardlex-Coated Steel case. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-7a74da363b80]

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
14.3mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
90m
Dial Color
Blue Sunburst
Jewels
23j
Frequency
21,600 bph
Power Reserve
41 hours
Year
1967

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seikata-wm-7a74da363b80