Seiko Cal. 3857 - 765

The Seiko 3857-765 represents an important milestone in Seiko's 1971 lineup. With its 19mm lug width and 10.1mm profile, it sits comfortably on most wrists. [seikata-wm-6cdbe7ee2b4e]

Also known as: Turtle, World Timer

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Green

Jewels

29j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1971

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