Seiko Cal. 6643 - 105

This Hand-Winding model from 1976 features a 39mm PVD Black case. Powered by the 6643 caliber with 25j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-c90554463835]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

25j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1976

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