Seiko Cal. 4490 - 633

This Spring Drive model from 1977 features a 43mm PVD Black case. Powered by the 4490 caliber with 23j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-668656643d88]

Also known as: Goldfeather

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

13.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Burgundy

Jewels

23j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1977

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