Seiko Cal. 5638 - 755

This Spring Drive model from 1983 features a 36mm PVD Black case. Powered by the 5638 caliber with 26j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-75484b79b2cf]

Also known as: Tuna, Goldfeather

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Champagne

Jewels

26j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1983

Related Models

• Seiko 6152-726
• Seiko 6632-973
• Seiko 7152-174
• Seiko 5673-223
• Seiko 6394-247
• Seiko 7194-828
• Seiko 4541-625
• Seiko 3840-113
• Seiko 3874-663
• Seiko 7113-716
• Seiko 4434-871
• Seiko 6221-153