Seiko Cal. 5641 - 581

The Seiko 5641-581 represents an important milestone in Seiko's 1999 lineup. It features a Navy dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-9f219abe3988]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Navy

Jewels

19j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1999

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