Seiko Cal. 3878 - 978

The 3878-978 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3878 caliber with 25j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-e49d633b00aa]

Also known as: Panda, Rally

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Navy

Jewels

25j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1966

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