Seiko Cal. 3870 - 520

This Hand-Winding model from 1999 features a 45mm Hardlex-Coated Steel case. It features a White dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-f6acb1357d5d]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

13.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

200m

Dial Color

White

Jewels

31j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1999

Related Models

• Seiko 6134-606
• Seiko 4553-892
• Seiko 6123-697
• Seiko 6644-326
• Seiko 6661-112
• Seiko 7150-249
• Seiko 5223-463
• Seiko 7111-600
• Seiko 6357-658
• Seiko 7078-689
• Seiko 5223-938
• Seiko 4537-879