Seiko Cal. 3878 - 261

The 3878-261 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3878 caliber with 33j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-cde79020bda6]

Also known as: Goldfeather, Navigator

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

14.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

White

Jewels

33j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1973

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