Seiko Cal. 4491 - 437

The 4491-437 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4491 caliber with 35j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-aedf8641c2eb]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

8.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

35j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1965

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