Seiko Cal. 3878 - 911

Seiko 3878-911

The 3878-911 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3878 caliber with 31j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-1ed0283f21c6]

Also known as: Baby Tuna

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
40mm
Case Thickness
10.8mm
Lug Width
21mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
30m
Dial Color
Silver
Jewels
31j
Frequency
36,000 bph
Power Reserve
41 hours
Year
1994

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