Seiko Cal. 5643 - 365

The 5643-365 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5643 caliber with 33j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-afc5662d9bde]

Also known as: Sea Horse, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Green

Jewels

33j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1977

Related Models

• Seiko 7044-944
• Seiko 6310-676
• Seiko 6346-998
• Seiko 0712-328
• Seiko 5653-416
• Seiko 4437-323
• Seiko 6699-733
• Seiko 4558-683
• Seiko 6364-160
• Seiko 6188-732
• Seiko 3823-556
• Seiko 6697-933