Seiko Cal. 7131 - 308

The Seiko 7131-308 represents an important milestone in Seiko's 1966 lineup. Powered by the 7131 caliber with 19j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-9dc661029625]

Also known as: Golden Tuna

Specifications

Movement

Solar

Case Material

Titanium

Case Width

44mm

Case Thickness

15.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1966

Related Models

• Seiko 6625-619
• Seiko 7139-504
• Seiko 3882-459
• Seiko 4565-829
• Seiko 3821-451
• Seiko 6371-199
• Seiko 5270-974
• Seiko 6255-170
• Seiko 4494-578
• Seiko 6671-111
• Seiko 7024-543
• Seiko 6398-851