Seiko Cal. 4477 - 138

The Seiko 4477-138 represents an important milestone in Seiko's 1980 lineup. Powered by the 4477 caliber with 18j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-49bd61ce44d0]

Also known as: Navigator

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

8.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

Champagne

Jewels

18j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1980

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