Seiko Cal. 5640 - 993

The 5640-993 is a sought-after Solar piece from Seiko's golden era. The Fixed bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-f94d429b70c5]

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

Champagne

Jewels

22j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1984

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