Seiko Cal. 5670 - 401

The 5670-401 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Navy dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-3be7ab23cd89]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

13.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

32j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1979

Related Models

• Seiko 5684-322
• Seiko 5265-745
• Seiko 5688-226
• Seiko 5293-234
• Seiko 3890-975
• Seiko 7055-582
• Seiko 6338-812
• Seiko 4590-604
• Seiko 5248-199
• Seiko 7098-273
• Seiko 6683-255
• Seiko 5210-883