Seiko Cal. 5640 - 509

The Seiko 5640-509 represents an important milestone in Seiko's 1997 lineup. Powered by the 5640 caliber with 24j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-1e2175336097]

Also known as: Samurai, Sportsmatic

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

11.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

White

Jewels

24j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1997

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