Seiko Cal. 7057 - 648

This Hand-Winding model from 1975 features a 42mm Stainless Steel case. Powered by the 7057 caliber with 26j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-15e995a6bc8f]

Also known as: Tuna, Emperor

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

15.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Green

Jewels

26j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1975

Related Models

• Seiko 4498-558
• Seiko 4534-597
• Seiko 6361-444
• Seiko 5240-342
• Seiko 5288-944
• Seiko 7054-749
• Seiko 6639-789
• Seiko 6393-591
• Seiko 0726-567
• Seiko 5616-371
• Seiko 7063-590
• Seiko 0733-541