Seiko Cal. 5640 - 869

Seiko 5640-869

This Solar model from 1978 features a 34mm Hardlex-Coated Steel case. With its 22mm lug width and 12.4mm profile, it sits comfortably on most wrists. [seikata-wm-b0b4d8b121e2]

Also known as: Bullhead, Flighty

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
34mm
Case Thickness
12.4mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
100m
Dial Color
Navy
Jewels
31j
Frequency
36,000 bph
Power Reserve
56 hours
Year
1978

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