Seiko Cal. 6131 - 707

This Hand-Winding model from 1969 features a 39mm Stainless Steel case. Powered by the 6131 caliber with 29j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-c7419a59adad]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Burgundy

Jewels

29j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1969

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