Seiko Cal. 5689 - 437

This Automatic model from 1986 features a 45mm Two-Tone case. Powered by the 5689 caliber with 18j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-cf7ce8ccf735]

Also known as: Sumo, Bellmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

8.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Silver

Jewels

18j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1986

Related Models

• Seiko 0719-804
• Seiko 3867-899
• Seiko 5679-964
• Seiko 5658-238
• Seiko 4423-708
• Seiko 6684-689
• Seiko 7056-298
• Seiko 7130-756
• Seiko 7133-212
• Seiko 6195-185
• Seiko 7112-897
• Seiko 6158-306