Seiko Cal. 3871 - 563

Seiko 3871-563

This Quartz model from 1986 features a 41mm Hardlex-Coated Steel case. Powered by the 3871 caliber with 23j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-f59d66ce23fb]

Also known as: Monster, Sea Horse

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
13.5mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
180m
Dial Color
Green
Jewels
23j
Frequency
36,000 bph
Power Reserve
70 hours
Year
1986

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