Seiko Cal. 5641 - 540

The Seiko 5641-540 represents an important milestone in Seiko's 1988 lineup. It features a Silver dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-26c7ab129182]

Also known as: Panda, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

14.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

31j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1988

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