Seiko Cal. 4423 - 557

The Seiko 4423-557 represents an important milestone in Seiko's 1997 lineup. Powered by the 4423 caliber with 28j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-1e0eb4507011]

Also known as: Bullhead, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

13.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1997

Related Models

• Seiko 6356-243
• Seiko 6338-799
• Seiko 4460-879
• Seiko 6314-894
• Seiko 7188-943
• Seiko 6149-136
• Seiko 7127-944
• Seiko 5210-340
• Seiko 5670-780
• Seiko 6117-795
• Seiko 3822-427
• Seiko 4439-468