Seiko Cal. 5641 - 410

The Seiko 5641-410 represents an important milestone in Seiko's 1973 lineup. It features a Black dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-e3f7af59492d]

Also known as: Baby Tuna, Flighty

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1973

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