Seiko Cal. 5640 - 785

This Quartz model from 1991 features a 36mm PVD Black case. With its 19mm lug width and 10.0mm profile, it sits comfortably on most wrists. [seikata-wm-5893b94eea0e]

Also known as: Samurai, Flighty

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Silver

Jewels

24j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1991

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