Seiko Cal. 3811 - 310

The Seiko 3811-310 represents an important milestone in Seiko's 1967 lineup. Powered by the 3811 caliber with 23j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-49e37afcbdef]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

11.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Burgundy

Jewels

23j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1967

Related Models

• Seiko 7159-566
• Seiko 3899-398
• Seiko 3846-368
• Seiko 0751-732
• Seiko 5290-147
• Seiko 6338-680
• Seiko 7136-901
• Seiko 3862-363
• Seiko 5660-180
• Seiko 5664-135
• Seiko 7080-450
• Seiko 7013-605