Seiko Cal. 6637 - 245

This Hand-Winding model from 1983 features a 37mm PVD Black case. With its 20mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-c56287f11b89]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Silver

Jewels

24j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1983

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