Seiko Cal. 6331 - 228

This Hand-Winding model from 1968 features a 44mm PVD Black case. With its 19mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-f876e7aa2402]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

13.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Black

Jewels

19j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1968

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