Seiko Cal. 4539 - 177

The Seiko 4539-177 represents an important milestone in Seiko's 1969 lineup. With its 20mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-b3b568279983]

Also known as: Tuna, Sea Horse

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1969

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