Seiko Cal. 3865 - 571

Released in 1975, the Cal. 3865 with design code 571 was part of Seiko's domestic market collection. With its 19mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-dbea37fe2cb7]

Also known as: Bullhead

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

37mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Silver

Jewels

27j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1975

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