Seiko Cal. 4428 - 328

This Automatic model from 1970 features a 46mm Two-Tone case. With its 19mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-7463f4584a8f]

Also known as: Panda, Baby Tuna

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Green

Jewels

22j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1970

Related Models

• Seiko 6189-334
• Seiko 0727-983
• Seiko 5679-838
• Seiko 5636-393
• Seiko 6367-522
• Seiko 0710-188
• Seiko 4469-890
• Seiko 6686-365
• Seiko 0757-293
• Seiko 5286-953
• Seiko 6632-864
• Seiko 6640-997