Seiko Cal. 6163 - 438

This Hand-Winding model from 1968 features a 39mm PVD Black case. Powered by the 6163 caliber with 30j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-f8fe0ed67043]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

110m

Dial Color

Green

Jewels

30j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1968

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