Seiko Cal. 3877 - 520

Seiko 3877-520

This Quartz model from 1972 features a 34mm Hardlex-Coated Steel case. Powered by the 3877 caliber with 24j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-33d47fd5b6f5]

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
34mm
Case Thickness
15.7mm
Lug Width
20mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
190m
Dial Color
Navy
Jewels
24j
Frequency
36,000 bph
Power Reserve
60 hours
Year
1972

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