Seiko Cal. 5640 - 288

The Seiko 5640-288 represents an important milestone in Seiko's 1991 lineup. It features a Silver dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-603e67be2814]

Also known as: Shogun, Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Silver

Jewels

24j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1991

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