Seiko Cal. 4548 - 927

This Spring Drive model from 1973 features a 40mm Two-Tone case. With its 22mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-4fe67110d865]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1973

Related Models

• Seiko 4523-185
• Seiko 7091-674
• Seiko 7194-433
• Seiko 5255-505
• Seiko 4459-663
• Seiko 3861-143
• Seiko 7010-592
• Seiko 3862-591
• Seiko 6397-149
• Seiko 4538-782
• Seiko 5698-350
• Seiko 5225-775