Seiko Cal. 4490 - 680

The 4490-680 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4490 caliber with 29j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-d892d3bfb515]

Also known as: Monster, Bellmatic

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Cream

Jewels

29j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1976

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