Seiko Cal. 5640 - 290

This Hand-Winding model from 1987 features a 46mm PVD Black case. It features a Black dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-5380f6faf263]

Also known as: Turtle

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Black

Jewels

22j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1987

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