Seiko Cal. 4491 - 812

Released in 1978, the Cal. 4491 with design code 812 was part of Seiko's domestic market collection. Powered by the 4491 caliber with 30j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-bd9992026a78]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

15.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1978

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