Seiko Cal. 6630 - 203

This Automatic model from 1968 features a 40mm PVD Black case. With its 18mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-f1fea792c7f4]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Black

Jewels

22j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1968

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