Seiko Cal. 0728 - 931

Seiko 0728-931

The Seiko 0728-931 represents an important milestone in Seiko's 1965 lineup. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-1b8884d93213]

Also known as: Helmet, Sea Horse

Specifications

Movement
Quartz
Case Material
Stainless Steel
Case Width
35mm
Case Thickness
12.2mm
Lug Width
21mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
170m
Dial Color
Champagne
Jewels
25j
Frequency
21,600 bph
Power Reserve
47 hours
Year
1965

Related Models

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