Seiko Cal. 4576 - 257

The Seiko 4576-257 represents an important milestone in Seiko's 1988 lineup. Powered by the 4576 caliber with 35j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-8e2837616b2f]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

36mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1988

Related Models

• Seiko 7016-432
• Seiko 6384-595
• Seiko 6161-141
• Seiko 6681-915
• Seiko 5263-995
• Seiko 7035-446
• Seiko 3877-264
• Seiko 6313-742
• Seiko 6169-844
• Seiko 7024-341
• Seiko 7164-913
• Seiko 3858-693