Seiko Cal. 4478 - 681

Released in 1972, the Cal. 4478 with design code 681 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-b25dcf9d4ae2]

Also known as: Emperor

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1972

Related Models

• Seiko 6128-174
• Seiko 5239-959
• Seiko 6680-921
• Seiko 4420-265
• Seiko 4466-580
• Seiko 4596-965
• Seiko 0766-332
• Seiko 6131-399
• Seiko 6379-551
• Seiko 6146-106
• Seiko 4573-839
• Seiko 4599-418