Seiko Cal. 3878 - 286

Seiko 3878-286

The 3878-286 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3878 caliber with 36j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-774732929e48]

Also known as: Tuna

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
36mm
Case Thickness
14.5mm
Lug Width
18mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
150m
Dial Color
Champagne
Jewels
36j
Frequency
21,600 bph
Power Reserve
49 hours
Year
1997

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seikata-wm-774732929e48