Seiko Cal. 7131 - 370

This Hand-Winding model from 1967 features a 45mm PVD Black case. Powered by the 7131 caliber with 18j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-e4968d8fb91c]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

12.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1967

Related Models

• Seiko 6227-683
• Seiko 6182-609
• Seiko 6258-244
• Seiko 7180-216
• Seiko 4534-271
• Seiko 7138-800
• Seiko 7053-226
• Seiko 7028-584
• Seiko 7175-536
• Seiko 4430-143
• Seiko 6651-187
• Seiko 6169-687