Seiko Cal. 4557 - 646

The Seiko 4557-646 represents an important milestone in Seiko's 1999 lineup. With its 21mm lug width and 14.6mm profile, it sits comfortably on most wrists. [seikata-wm-26b6b77778d5]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

26j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1999

Related Models

• Seiko 0759-177
• Seiko 6212-304
• Seiko 4474-635
• Seiko 4591-886
• Seiko 7017-658
• Seiko 4562-410
• Seiko 3826-440
• Seiko 6641-483
• Seiko 6626-792
• Seiko 6339-659
• Seiko 6612-331
• Seiko 4470-695