Seiko Cal. 6375 - 425

This Spring Drive model from 1978 features a 42mm PVD Black case. With its 20mm lug width and 8.6mm profile, it sits comfortably on most wrists. [seikata-wm-210b2531f346]

Also known as: Sumo, Flighty

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Champagne

Jewels

35j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1978

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