Seiko Cal. 6697 - 657

Seiko 6697-657

This Spring Drive model from 1981 features a 40mm Gold-Plated case. Powered by the 6697 caliber with 23j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-e12824578f2a]

Also known as: Crown, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
40mm
Case Thickness
11.9mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
110m
Dial Color
Champagne
Jewels
23j
Frequency
36,000 bph
Power Reserve
36 hours
Year
1981

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