Seiko Cal. 5658 - 907

Seiko 5658-907

This Quartz model from 1976 features a 44mm Stainless Steel case. Powered by the 5658 caliber with 21j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-f593daa3b9b1]

Also known as: Helmet

Specifications

Movement
Quartz
Case Material
Stainless Steel
Case Width
44mm
Case Thickness
13.7mm
Lug Width
18mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
120m
Dial Color
Navy
Jewels
21j
Frequency
36,000 bph
Power Reserve
56 hours
Year
1976

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