Seiko Cal. 5661 - 545

The Seiko 5661-545 represents an important milestone in Seiko's 1991 lineup. With its 18mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-863a40476b1b]

Also known as: Baby Tuna, Flighty

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

38mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Black

Jewels

27j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1991

Related Models

• Seiko 6154-910
• Seiko 3858-706
• Seiko 6362-692
• Seiko 5668-683
• Seiko 7198-789
• Seiko 4421-830
• Seiko 6691-655
• Seiko 7159-532
• Seiko 6374-699
• Seiko 4530-893
• Seiko 3837-928
• Seiko 4486-843