Seiko Cal. 3870 - 787

This Solar model from 1978 features a 46mm PVD Black case. It features a Burgundy dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-e8637497c405]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

46mm

Case Thickness

14.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Burgundy

Jewels

30j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1978

Related Models

• Seiko 0741-807
• Seiko 3893-795
• Seiko 7116-832
• Seiko 7054-937
• Seiko 4571-719
• Seiko 5297-547
• Seiko 6118-861
• Seiko 5251-738
• Seiko 5267-587
• Seiko 5667-674
• Seiko 4428-965
• Seiko 6157-472