Seiko Cal. 4440 - 255

This Spring Drive model from 1988 features a 40mm PVD Black case. With its 18mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-550adc5aaacc]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Burgundy

Jewels

17j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1988

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