Seiko Cal. 7031 - 808

This Automatic model from 1979 features a 46mm PVD Black case. Powered by the 7031 caliber with 20j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-c0b7c2fc6e7c]

Also known as: Sumo, Helmet

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

46mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1979

Related Models

• Seiko 6397-491
• Seiko 6283-105
• Seiko 7062-551
• Seiko 0729-674
• Seiko 5639-572
• Seiko 6258-824
• Seiko 6150-824
• Seiko 4533-387
• Seiko 6175-442
• Seiko 5627-766
• Seiko 6297-879
• Seiko 7192-567