Seiko Cal. 6628 - 728

Seiko 6628-728

The Seiko 6628-728 represents an important milestone in Seiko's 1987 lineup. Powered by the 6628 caliber with 32j jewels beating at 36,000 bph, it delivers a 71 hours power reserve. [seikata-wm-415c4431be28]

Also known as: Silverwave, Arnie

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
38mm
Case Thickness
11.3mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
100m
Dial Color
White
Jewels
32j
Frequency
36,000 bph
Power Reserve
71 hours
Year
1987

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seikata-wm-415c4431be28