Seiko Cal. 7181 - 217

The Seiko 7181-217 represents an important milestone in Seiko's 1967 lineup. Powered by the 7181 caliber with 31j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-5da7ccc01f47]

Also known as: Bullhead, Arnie

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

12.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1967

Related Models

• Seiko 7150-881
• Seiko 3823-387
• Seiko 3811-392
• Seiko 5641-221
• Seiko 6230-228
• Seiko 5648-757
• Seiko 4443-904
• Seiko 6359-510
• Seiko 4552-997
• Seiko 7120-668
• Seiko 0797-922
• Seiko 7199-555