Seiko Cal. 4539 - 288

The Seiko 4539-288 represents an important milestone in Seiko's 1970 lineup. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-66f4db4a5a8a]

Also known as: Sea Horse, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

14.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Green

Jewels

19j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1970

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