Seiko Cal. 7181 - 440

This Hand-Winding model from 1974 features a 43mm Stainless Steel case. Powered by the 7181 caliber with 26j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-f314375506b9]

Also known as: Shogun, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

8.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Navy

Jewels

26j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1974

Related Models

• Seiko 5245-578
• Seiko 4463-775
• Seiko 6218-144
• Seiko 6654-455
• Seiko 6663-430
• Seiko 5678-601
• Seiko 5670-384
• Seiko 3847-678
• Seiko 0767-820
• Seiko 0760-835
• Seiko 3884-357
• Seiko 6243-878