Seiko Cal. 5610 - 538

The Seiko 5610-538 represents an important milestone in Seiko's 1966 lineup. With its 21mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-76a8332fa5cb]

Also known as: Turtle, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

12.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

80m

Dial Color

Green

Jewels

20j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1966

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