Seiko Cal. 6344 - 639

Seiko 6344-639

The 6344-639 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6344 caliber with 31j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-fd50aec51c0e]

Also known as: UFO, Arnie

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
9.4mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
180m
Dial Color
Cream
Jewels
31j
Frequency
21,600 bph
Power Reserve
42 hours
Year
1993

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