Seiko Cal. 0728 - 920

Released in 1970, the Cal. 0728 with design code 920 was part of Seiko's domestic market collection. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-267df43aadc2]

Also known as: Turtle, Flighty

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Black

Jewels

36j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1970

Related Models

• Seiko 3870-235
• Seiko 0721-194
• Seiko 3831-546
• Seiko 0745-150
• Seiko 6254-595
• Seiko 6144-692
• Seiko 5265-958
• Seiko 5628-352
• Seiko 6286-727
• Seiko 4555-335
• Seiko 7040-643
• Seiko 6612-530