Seiko Cal. 3878 - 403

This Solar model from 1972 features a 34mm Two-Tone case. The Inner Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-d40383aa9320]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

34mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Champagne

Jewels

25j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1972

Related Models

• Seiko 7119-526
• Seiko 6366-888
• Seiko 7088-141
• Seiko 4531-328
• Seiko 0771-200
• Seiko 7076-605
• Seiko 0778-108
• Seiko 6278-518
• Seiko 6172-325
• Seiko 3810-827
• Seiko 4418-408
• Seiko 3815-736