Seiko Cal. 3870 - 774

The 3870-774 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3870 caliber with 28j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-4cdf62524a7c]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

34mm

Case Thickness

12.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Champagne

Jewels

28j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1974

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