Seiko Cal. 6240 - 817

The 6240-817 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6240 caliber with 27j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-6bccd970cd37]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1976

Related Models

• Seiko 6210-738
• Seiko 7170-116
• Seiko 7026-205
• Seiko 4432-513
• Seiko 4545-779
• Seiko 0720-204
• Seiko 5289-912
• Seiko 6251-534
• Seiko 6698-991
• Seiko 6310-387
• Seiko 7079-804
• Seiko 6174-615