Seiko Cal. 6391 - 732

This Hand-Winding model from 1968 features a 40mm PVD Black case. Powered by the 6391 caliber with 25j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-c47a2c0cc000]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Cream

Jewels

25j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1968

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