Seiko Cal. 3840 - 652

Seiko 3840-652

The 3840-652 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3840 caliber with 20j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-3befceb8473c]

Also known as: Turtle, Tuna

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
34mm
Case Thickness
10.4mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
160m
Dial Color
Champagne
Jewels
20j
Frequency
36,000 bph
Power Reserve
65 hours
Year
1988

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seikata-wm-3befceb8473c