Seiko Cal. 4491 - 671

The Seiko 4491-671 represents an important milestone in Seiko's 1968 lineup. Powered by the 4491 caliber with 31j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-47d12a32d028]

Also known as: Sea Horse, Arnie

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Cream

Jewels

31j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1968

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