Seiko Cal. 5678 - 100

The 5678-100 is a sought-after Spring Drive piece from Seiko's golden era. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-75f57383667e]

Also known as: Sumo, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

14.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

32j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1994

Related Models

• Seiko 7011-303
• Seiko 4478-981
• Seiko 6254-178
• Seiko 7164-591
• Seiko 6683-655
• Seiko 4599-135
• Seiko 5249-675
• Seiko 6216-867
• Seiko 7086-536
• Seiko 6124-601
• Seiko 6191-858
• Seiko 7024-874