Seiko Cal. 4428 - 554

The Seiko 4428-554 represents an important milestone in Seiko's 1976 lineup. It features a Navy dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-225a417d18cb]

Also known as: Monster, Helmet

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

11.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

18j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1976

Related Models

• Seiko 6368-477
• Seiko 5239-752
• Seiko 7017-353
• Seiko 6272-925
• Seiko 6631-765
• Seiko 7153-282
• Seiko 5618-295
• Seiko 4576-763
• Seiko 3873-171
• Seiko 4590-802
• Seiko 4533-154
• Seiko 6240-162