Seiko Cal. 5641 - 597

Seiko 5641-597

This Hand-Winding model from 1997 features a 36mm Hardlex-Coated Steel case. Powered by the 5641 caliber with 31j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-160b9b57200a]

Also known as: Turtle, Sumo

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
15.3mm
Lug Width
21mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
100m
Dial Color
Blue Sunburst
Jewels
31j
Frequency
21,600 bph
Power Reserve
67 hours
Year
1997

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seikata-wm-160b9b57200a