Seiko Cal. 5660 - 634

The 5660-634 is a sought-after Automatic piece from Seiko's golden era. With its 20mm lug width and 12.9mm profile, it sits comfortably on most wrists. [seikata-wm-0fe6ac162b0a]

Also known as: Turtle

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

39mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Cream

Jewels

27j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1981

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