Seiko Cal. 3878 - 769

Seiko 3878-769

The 3878-769 is a sought-after Solar piece from Seiko's golden era. Powered by the 3878 caliber with 21j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-30d0e062e118]

Also known as: Sumo, Sea Horse

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
40mm
Case Thickness
10.8mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
180m
Dial Color
Silver
Jewels
21j
Frequency
36,000 bph
Power Reserve
37 hours
Year
1969

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seikata-wm-30d0e062e118