Seiko Cal. 5643 - 734

The Seiko 5643-734 represents an important milestone in Seiko's 1976 lineup. Powered by the 5643 caliber with 17j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-22811ad6d9bd]

Also known as: Rally, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

17j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1976

Related Models

• Seiko 0744-271
• Seiko 4497-438
• Seiko 5290-571
• Seiko 5295-175
• Seiko 7015-382
• Seiko 6177-881
• Seiko 4430-903
• Seiko 5661-222
• Seiko 7159-746
• Seiko 4515-458
• Seiko 0735-382
• Seiko 7169-110