Seiko Cal. 3839 - 377

Seiko 3839-377

The 3839-377 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3839 caliber with 22j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-a413c669423a]

Also known as: Sumo

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
44mm
Case Thickness
14.4mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
60m
Dial Color
Silver
Jewels
22j
Frequency
28,800 bph
Power Reserve
38 hours
Year
1976

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