Seiko Cal. 6636 - 189

This Spring Drive model from 1995 features a 44mm PVD Black case. With its 19mm lug width and 11.2mm profile, it sits comfortably on most wrists. [seikata-wm-98e40f4b1f63]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

170m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1995

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