Seiko Cal. 3855 - 875

The 3855-875 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3855 caliber with 25j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-333d56ec68ba]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

White

Jewels

25j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1978

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