Seiko Cal. 5639 - 399

Seiko 5639-399

The Seiko 5639-399 represents an important milestone in Seiko's 1981 lineup. Powered by the 5639 caliber with 19j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-ea2945815333]

Also known as: Helmet, Arnie

Specifications

Movement
Kinetic
Case Material
Gold-Plated
Case Width
44mm
Case Thickness
12.2mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
70m
Dial Color
White
Jewels
19j
Frequency
36,000 bph
Power Reserve
69 hours
Year
1981

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