Seiko Cal. 4491 - 471

The Seiko 4491-471 represents an important milestone in Seiko's 1983 lineup. Powered by the 4491 caliber with 28j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-31381dd57a61]

Also known as: Tuna, Crown

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

14.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Navy

Jewels

28j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1983

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