Seiko Cal. 6657 - 215

This Hand-Winding model from 1980 features a 41mm Titanium case. Powered by the 6657 caliber with 30j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-5b8ace3c09be]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

10.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1980

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