Seiko Cal. 4556 - 451

The Seiko 4556-451 represents an important milestone in Seiko's 1985 lineup. With its 20mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-f98f2e7472e6]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Burgundy

Jewels

24j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1985

Related Models

• Seiko 4536-128
• Seiko 6197-666
• Seiko 6635-512
• Seiko 6679-561
• Seiko 7112-519
• Seiko 6640-859
• Seiko 6219-256
• Seiko 5642-690
• Seiko 7045-476
• Seiko 4526-167
• Seiko 5235-716
• Seiko 6375-415