Seiko Cal. 3878 - 490

Seiko 3878-490

This Automatic model from 1991 features a 38mm Gold-Plated case. Powered by the 3878 caliber with 32j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-9adc0e92ec5f]

Also known as: Sumo

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
38mm
Case Thickness
11.0mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
40m
Dial Color
Silver
Jewels
32j
Frequency
28,800 bph
Power Reserve
69 hours
Year
1991

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