Seiko Cal. 5640 - 203

The Seiko 5640-203 represents an important milestone in Seiko's 1973 lineup. It features a Cream dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-4cc90ea1071e]

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

43mm

Case Thickness

9.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Cream

Jewels

25j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1973

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