Seiko Cal. 6657 - 503

This Hand-Winding model from 1998 features a 44mm PVD Black case. With its 20mm lug width and 11.0mm profile, it sits comfortably on most wrists. [seikata-wm-d6bbc7c5dd96]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Silver

Jewels

21j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1998

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