Seiko Cal. 4539 - 104

The 4539-104 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4539 caliber with 21j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-4ffe545dcfda]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

90m

Dial Color

Burgundy

Jewels

21j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1970

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