Seiko Cal. 6228 - 390

Released in 1975, the Cal. 6228 with design code 390 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-caaab2a509bf]

Also known as: Helmet, Emperor

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

13.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1975

Related Models

• Seiko 5284-483
• Seiko 7029-616
• Seiko 6135-829
• Seiko 5218-140
• Seiko 5643-602
• Seiko 3878-496
• Seiko 4588-439
• Seiko 6292-750
• Seiko 6623-273
• Seiko 0786-427
• Seiko 6182-931
• Seiko 5625-112