Seiko Cal. 6389 - 430

Seiko 6389-430

The Seiko 6389-430 represents an important milestone in Seiko's 1975 lineup. Powered by the 6389 caliber with 31j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-8151226c043b]

Also known as: Sportsmatic

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
38mm
Case Thickness
8.1mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
140m
Dial Color
Black
Jewels
31j
Frequency
36,000 bph
Power Reserve
60 hours
Year
1975

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