Seiko Cal. 4557 - 931

The 4557-931 is a sought-after Spring Drive piece from Seiko's golden era. With its 22mm lug width and 11.9mm profile, it sits comfortably on most wrists. [seikata-wm-dcff07daffb3]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1989

Related Models

• Seiko 0719-104
• Seiko 6313-119
• Seiko 5685-506
• Seiko 7050-921
• Seiko 6338-869
• Seiko 6154-417
• Seiko 4442-732
• Seiko 4441-846
• Seiko 6149-446
• Seiko 7055-588
• Seiko 5625-168
• Seiko 6357-813