Seiko Cal. 3878 - 717

The 3878-717 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3878 caliber with 35j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-13025c878416]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1999

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