Seiko Cal. 0770 - 550

This Hand-Winding model from 1998 features a 41mm PVD Black case. With its 22mm lug width and 8.9mm profile, it sits comfortably on most wrists. [seikata-wm-5651406028ba]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Black

Jewels

28j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1998

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