Seiko Cal. 3871 - 747

Seiko 3871-747

This Solar model from 1977 features a 39mm Gold-Plated case. Powered by the 3871 caliber with 27j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-76745b08bed6]

Also known as: Sumo, UFO

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
9.8mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
30m
Dial Color
Green
Jewels
27j
Frequency
28,800 bph
Power Reserve
46 hours
Year
1977

Related Models

seikata-wm-76745b08bed6