Seiko Cal. 4561 - 550

The Seiko 4561-550 represents an important milestone in Seiko's 1980 lineup. It features a Navy dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-36656d860ffd]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

34mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

22j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1980

Related Models

• Seiko 3862-806
• Seiko 6187-545
• Seiko 6665-839
• Seiko 6171-208
• Seiko 0764-389
• Seiko 3847-848
• Seiko 6383-140
• Seiko 4480-411
• Seiko 6122-668
• Seiko 6674-549
• Seiko 6374-796
• Seiko 5652-302