Seiko Cal. 3874 - 643

Seiko 3874-643

The 3874-643 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3874 caliber with 19j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-6a0970ae4fe9]

Also known as: Turtle

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
44mm
Case Thickness
11.5mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
30m
Dial Color
Cream
Jewels
19j
Frequency
28,800 bph
Power Reserve
60 hours
Year
1987

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