Seiko Cal. 4457 - 717

The Seiko 4457-717 represents an important milestone in Seiko's 1965 lineup. Powered by the 4457 caliber with 20j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-96f1590f7c64]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1965

Related Models

• Seiko 0726-959
• Seiko 6174-388
• Seiko 5280-558
• Seiko 3859-996
• Seiko 5298-387
• Seiko 0720-213
• Seiko 4536-194
• Seiko 3836-995
• Seiko 5685-287
• Seiko 5225-518
• Seiko 0750-832
• Seiko 5655-355