Seiko Cal. 5694 - 656

This Spring Drive model from 1969 features a 43mm Stainless Steel case. Powered by the 5694 caliber with 20j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-35156efe3a8d]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

13.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Black

Jewels

20j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1969

Related Models

• Seiko 7084-513
• Seiko 6615-884
• Seiko 6156-861
• Seiko 5698-952
• Seiko 7198-447
• Seiko 7122-140
• Seiko 5655-253
• Seiko 4418-945
• Seiko 6158-821
• Seiko 5283-286
• Seiko 7136-969
• Seiko 6323-582