Seiko Cal. 5640 - 439

This Spring Drive model from 1986 features a 45mm Two-Tone case. With its 20mm lug width and 8.2mm profile, it sits comfortably on most wrists. [seikata-wm-10c4dba7674c]

Also known as: Samurai

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

8.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

Champagne

Jewels

30j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1986

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