Seiko Cal. 5643 - 164

The Seiko 5643-164 represents an important milestone in Seiko's 1992 lineup. Powered by the 5643 caliber with 24j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-17792a1ee271]

Also known as: Sumo, Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

White

Jewels

24j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1992

Related Models

• Seiko 4581-795
• Seiko 6156-494
• Seiko 6620-496
• Seiko 7077-949
• Seiko 4557-102
• Seiko 5288-442
• Seiko 4581-307
• Seiko 5268-788
• Seiko 5635-779
• Seiko 3823-598
• Seiko 4553-995
• Seiko 6684-753