Seiko Cal. 5257 - 986

This Spring Drive model from 1974 features a 41mm Stainless Steel case. Powered by the 5257 caliber with 18j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-46cffdc9db0a]

Also known as: World Timer, Navigator

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Black

Jewels

18j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1974

Related Models

• Seiko 5254-836
• Seiko 3858-939
• Seiko 6350-853
• Seiko 5667-131
• Seiko 4516-517
• Seiko 3893-971
• Seiko 6141-322
• Seiko 6381-541
• Seiko 6657-573
• Seiko 6186-158
• Seiko 7141-605
• Seiko 6293-388