Seiko Cal. 6636 - 970

Seiko 6636-970

The 6636-970 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6636 caliber with 25j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-06181bb97c26]

Also known as: Golden Tuna

Specifications

Movement
Quartz
Case Material
Gold-Plated
Case Width
43mm
Case Thickness
15.2mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
100m
Dial Color
Black
Jewels
25j
Frequency
28,800 bph
Power Reserve
69 hours
Year
1984

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