Seiko Cal. 4480 - 328

This Spring Drive model from 1981 features a 38mm Titanium case. With its 18mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-e80cd6786ed9]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Silver

Jewels

26j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1981

Related Models

• Seiko 4560-986
• Seiko 6344-190
• Seiko 6698-311
• Seiko 5614-192
• Seiko 7091-665
• Seiko 6663-479
• Seiko 5695-989
• Seiko 5234-154
• Seiko 6686-363
• Seiko 6683-170
• Seiko 6264-426
• Seiko 5230-229