Seiko Cal. 5637 - 791

Seiko 5637-791

This Solar model from 1965 features a 40mm Hardlex-Coated Steel case. Powered by the 5637 caliber with 19j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-a3cfd1f9acae]

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
13.2mm
Lug Width
18mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
60m
Dial Color
Navy
Jewels
19j
Frequency
21,600 bph
Power Reserve
48 hours
Year
1965

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