Seiko Cal. 4451 - 331

This Hand-Winding model from 1991 features a 42mm Gold-Plated case. Powered by the 4451 caliber with 27j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-8f6719801698]

Also known as: Tuna, Crown

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

11.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Green

Jewels

27j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1991

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