Seiko Cal. 3878 - 747

Seiko 3878-747

The Seiko 3878-747 represents an important milestone in Seiko's 1987 lineup. Powered by the 3878 caliber with 26j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-0dce0fc76ad3]

Also known as: Golden Tuna

Specifications

Movement
Solar
Case Material
PVD Black
Case Width
38mm
Case Thickness
11.9mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
150m
Dial Color
Navy
Jewels
26j
Frequency
36,000 bph
Power Reserve
58 hours
Year
1987

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