Seiko Cal. 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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