Seiko Cal. 7091 - 728

The 7091-728 is a sought-after Spring Drive piece from Seiko's golden era. It features a Burgundy dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-a30b9eebcf89]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Burgundy

Jewels

33j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1969

Related Models

• Seiko 6365-709
• Seiko 7114-953
• Seiko 6238-875
• Seiko 3813-861
• Seiko 0757-523
• Seiko 7062-406
• Seiko 7137-441
• Seiko 5645-110
• Seiko 7082-974
• Seiko 3819-529
• Seiko 3861-564
• Seiko 5619-250