Seiko Cal. 3865 - 243

Seiko 3865-243

The 3865-243 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3865 caliber with 31j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-7585f15a72ae]

Also known as: Bellmatic, Emperor

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
38mm
Case Thickness
15.1mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
120m
Dial Color
Burgundy
Jewels
31j
Frequency
28,800 bph
Power Reserve
55 hours
Year
1978

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