Seiko Cal. 4457 - 928

This Spring Drive model from 1981 features a 41mm PVD Black case. With its 21mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-18e649694c4a]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

15.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Navy

Jewels

19j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1981

Related Models

• Seiko 6637-349
• Seiko 6216-438
• Seiko 6631-720
• Seiko 5624-708
• Seiko 6322-786
• Seiko 7093-601
• Seiko 5298-306
• Seiko 4488-566
• Seiko 7072-156
• Seiko 7094-956
• Seiko 6298-402
• Seiko 7178-136