Seiko Cal. 5240 - 207

The Seiko 5240-207 represents an important milestone in Seiko's 1997 lineup. Powered by the 5240 caliber with 21j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-c13da7eb1b78]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

13.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

170m

Dial Color

White

Jewels

21j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1997

Related Models

• Seiko 6151-868
• Seiko 6666-167
• Seiko 4546-517
• Seiko 0769-757
• Seiko 6343-598
• Seiko 6280-987
• Seiko 5626-384
• Seiko 7079-921
• Seiko 5216-869
• Seiko 0770-711
• Seiko 0748-607
• Seiko 0753-481