Seiko Cal. 3891 - 650

Seiko 3891-650

The 3891-650 is a sought-after Solar piece from Seiko's golden era. Powered by the 3891 caliber with 30j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-2ab249c1d4d7]

Also known as: Sea Horse

Specifications

Movement
Solar
Case Material
Two-Tone
Case Width
46mm
Case Thickness
8.7mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
160m
Dial Color
Burgundy
Jewels
30j
Frequency
21,600 bph
Power Reserve
65 hours
Year
1968

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