Seiko Cal. 3865 - 975

The 3865-975 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-79e0d802e470]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Champagne

Jewels

19j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1991

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