Seiko Cal. 3875 - 403

Released in 1976, the Cal. 3875 with design code 403 was part of Seiko's domestic market collection. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-8adf75088fd9]

Also known as: Sumo, Helmet

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Cream

Jewels

34j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1976

Related Models

• Seiko 7030-298
• Seiko 3867-169
• Seiko 0778-148
• Seiko 7155-616
• Seiko 6220-825
• Seiko 6695-165
• Seiko 3844-371
• Seiko 5674-705
• Seiko 6365-543
• Seiko 7146-770
• Seiko 6342-767
• Seiko 4579-546