Seiko Cal. 3878 - 204

Seiko 3878-204

This Spring Drive model from 1982 features a 36mm Hardlex-Coated Steel case. Powered by the 3878 caliber with 36j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-eec8f78a0b97]

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
12.2mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
70m
Dial Color
Navy
Jewels
36j
Frequency
36,000 bph
Power Reserve
45 hours
Year
1982

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