Seiko Cal. 0728 - 812

Released in 1980, the Cal. 0728 with design code 812 was part of Seiko's domestic market collection. With its 19mm lug width and 11.3mm profile, it sits comfortably on most wrists. [seikata-wm-9ac1874aea66]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

170m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1980

Related Models

• Seiko 6268-751
• Seiko 3851-538
• Seiko 6351-629
• Seiko 7016-621
• Seiko 4518-675
• Seiko 7170-668
• Seiko 6378-192
• Seiko 5270-168
• Seiko 5610-510
• Seiko 3880-503
• Seiko 6232-497
• Seiko 5688-582