Seiko Cal. 6657 - 334

This Hand-Winding model from 1973 features a 41mm Hardlex-Coated Steel case. Powered by the 6657 caliber with 17j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-65e5d211e3ab]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

9.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1973

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