Seiko Cal. 7131 - 448

The Seiko 7131-448 represents an important milestone in Seiko's 1977 lineup. It features a Silver dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-c27f0c56cecf]

Also known as: Bellmatic, Crown

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

15.7mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Silver

Jewels

17j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1977

Related Models

• Seiko 4444-760
• Seiko 7012-618
• Seiko 0733-557
• Seiko 6283-840
• Seiko 5227-439
• Seiko 4556-242
• Seiko 7189-587
• Seiko 4564-123
• Seiko 6222-750
• Seiko 6648-416
• Seiko 5645-838
• Seiko 7055-259