Seiko Cal. 5655 - 680

This Spring Drive model from 1986 features a 37mm Two-Tone case. Powered by the 5655 caliber with 22j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-11103a38f47e]

Also known as: Sumo, Panda

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

10.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Green

Jewels

22j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1986

Related Models

• Seiko 6352-756
• Seiko 5688-379
• Seiko 3816-481
• Seiko 6348-929
• Seiko 6222-465
• Seiko 4520-996
• Seiko 6166-746
• Seiko 4464-484
• Seiko 4540-467
• Seiko 0783-611
• Seiko 5685-623
• Seiko 4585-784