Seiko Cal. 5640 - 541

The Seiko 5640-541 represents an important milestone in Seiko's 1985 lineup. It features a Silver dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-4ad840c18a60]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

15.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

170m

Dial Color

Silver

Jewels

28j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1985

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