Seiko Cal. 4428 - 470

This Quartz model from 1980 features a 46mm PVD Black case. The Coin-Edge bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-b6da5bf69a87]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

46mm

Case Thickness

11.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1980

Related Models

• Seiko 6383-311
• Seiko 6699-189
• Seiko 6277-646
• Seiko 6174-633
• Seiko 3881-167
• Seiko 0730-204
• Seiko 5238-451
• Seiko 6170-444
• Seiko 3841-444
• Seiko 3836-657
• Seiko 5277-573
• Seiko 3899-223