Seiko Cal. 6637 - 708

This Spring Drive model from 1998 features a 45mm PVD Black case. With its 20mm lug width and 12.5mm profile, it sits comfortably on most wrists. [seikata-wm-f84c16c6f64a]

Also known as: Samurai

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Green

Jewels

19j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1998

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