Seiko Cal. 7131 - 740

The Seiko 7131-740 represents an important milestone in Seiko's 1998 lineup. Powered by the 7131 caliber with 27j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-84af9b4932a8]

Also known as: Sea Horse

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

9.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Silver

Jewels

27j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1998

Related Models

• Seiko 7094-258
• Seiko 5668-363
• Seiko 7149-539
• Seiko 3891-975
• Seiko 7044-397
• Seiko 6614-596
• Seiko 0791-582
• Seiko 3853-867
• Seiko 6388-560
• Seiko 6362-112
• Seiko 4515-275
• Seiko 4592-593