Seiko Cal. 3866 - 754

The 3866-754 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3866 caliber with 33j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-67469c8d9e60]

Also known as: Turtle, Baby Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

46mm

Case Thickness

8.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Cream

Jewels

33j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1977

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