Seiko Cal. 7028 - 634

Seiko 7028-634

Released in 1981, the Cal. 7028 with design code 634 was part of Seiko's domestic market collection. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-9f1aaa0e973d]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
42mm
Case Thickness
9.0mm
Lug Width
20mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
70m
Dial Color
Navy
Jewels
25j
Frequency
36,000 bph
Power Reserve
70 hours
Year
1981

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