Seiko Cal. 4577 - 392

The Seiko 4577-392 represents an important milestone in Seiko's 1966 lineup. Powered by the 4577 caliber with 28j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-0e5f2163d132]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

13.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1966

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