Seiko Cal. 6636 - 554

Seiko 6636-554

This Solar model from 1965 features a 46mm Hardlex-Coated Steel case. With its 21mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-4a2674854af7]

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
10.2mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
120m
Dial Color
Navy
Jewels
20j
Frequency
21,600 bph
Power Reserve
56 hours
Year
1965

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