Seiko Cal. 7131 - 564

The Seiko 7131-564 represents an important milestone in Seiko's 1976 lineup. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-897bbcecf2a1]

Also known as: Bellmatic, Emperor

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

13.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Champagne

Jewels

27j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1976

Related Models

• Seiko 4476-688
• Seiko 3865-483
• Seiko 7142-266
• Seiko 5653-808
• Seiko 6647-855
• Seiko 6678-748
• Seiko 4548-129
• Seiko 4528-296
• Seiko 4492-516
• Seiko 6285-218
• Seiko 6628-759
• Seiko 7112-530