Seiko Cal. 7113 - 997

This Spring Drive model from 1965 features a 37mm Stainless Steel case. Powered by the 7113 caliber with 22j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-d0b3a846c6eb]

Also known as: Monster, Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

14.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Silver

Jewels

22j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1965

Related Models

• Seiko 5266-637
• Seiko 6131-131
• Seiko 7133-231
• Seiko 6277-860
• Seiko 4539-731
• Seiko 6668-393
• Seiko 4520-385
• Seiko 6617-455
• Seiko 6174-824
• Seiko 3894-496
• Seiko 7170-924
• Seiko 5638-126