Seiko Cal. 3863 - 345

Seiko 3863-345

The 3863-345 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3863 caliber with 23j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-ff998ec6e55c]

Also known as: Monster, Sumo

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
15.1mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
90m
Dial Color
Burgundy
Jewels
23j
Frequency
21,600 bph
Power Reserve
65 hours
Year
1968

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