Seiko Cal. 3860 - 433

Seiko 3860-433

The 3860-433 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3860 caliber with 28j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-0dd734d02d8b]

Also known as: Turtle, Crown

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
13.6mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
40m
Dial Color
Champagne
Jewels
28j
Frequency
28,800 bph
Power Reserve
49 hours
Year
1981

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