Seiko Cal. 4448 - 680

The 4448-680 is a sought-after Spring Drive piece from Seiko's golden era. With its 21mm lug width and 12.4mm profile, it sits comfortably on most wrists. [seikata-wm-9527cf53dd54]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Burgundy

Jewels

27j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1976

Related Models

• Seiko 4480-111
• Seiko 4479-638
• Seiko 7154-643
• Seiko 6220-401
• Seiko 4557-972
• Seiko 5243-870
• Seiko 7176-262
• Seiko 5234-125
• Seiko 4458-382
• Seiko 6227-385
• Seiko 6284-784
• Seiko 6314-286