Seiko Cal. 0789 - 663

Seiko 0789-663

The Seiko 0789-663 represents an important milestone in Seiko's 1986 lineup. Powered by the 0789 caliber with 24j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-42eb7672dc94]

Also known as: Helmet, Sportsmatic

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
46mm
Case Thickness
15.8mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
60m
Dial Color
Burgundy
Jewels
24j
Frequency
36,000 bph
Power Reserve
40 hours
Year
1986

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