Seiko Cal. 3840 - 536

Seiko 3840-536

The 3840-536 is a sought-after Solar piece from Seiko's golden era. Powered by the 3840 caliber with 20j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-9df996059c2e]

Also known as: Bellmatic

Specifications

Movement
Solar
Case Material
PVD Black
Case Width
39mm
Case Thickness
12.0mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
190m
Dial Color
Burgundy
Jewels
20j
Frequency
21,600 bph
Power Reserve
60 hours
Year
1981

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