Seiko Cal. 4431 - 507

This Hand-Winding model from 1986 features a 34mm Two-Tone case. With its 18mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-aa76e69c9da1]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

170m

Dial Color

Navy

Jewels

19j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1986

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