Seiko Cal. 5643 - 410

The Seiko 5643-410 represents an important milestone in Seiko's 1966 lineup. Powered by the 5643 caliber with 23j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-72345d057fc9]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

12.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Champagne

Jewels

23j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1966

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