Seiko Cal. 6636 - 745

This Hand-Winding model from 1987 features a 38mm Two-Tone case. With its 22mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-5bc1a5d76e89]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

9.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1987

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