Seiko Cal. 7131 - 767

This Automatic model from 1969 features a 38mm PVD Black case. Powered by the 7131 caliber with 32j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-0da38f3d0893]

Also known as: Tuna, Arnie

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

38mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Green

Jewels

32j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1969

Related Models

• Seiko 6135-968
• Seiko 6191-849
• Seiko 7084-594
• Seiko 6316-894
• Seiko 5631-683
• Seiko 6649-202
• Seiko 7167-194
• Seiko 3882-156
• Seiko 6699-254
• Seiko 6197-161
• Seiko 4596-182
• Seiko 5298-233