Seiko Cal. 6320 - 339

Seiko 6320-339

The Seiko 6320-339 represents an important milestone in Seiko's 1982 lineup. Powered by the 6320 caliber with 20j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-650f78df910b]

Also known as: Helmet, Sportsmatic

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
8.6mm
Lug Width
21mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
90m
Dial Color
Blue Sunburst
Jewels
20j
Frequency
28,800 bph
Power Reserve
70 hours
Year
1982

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seikata-wm-650f78df910b