Seiko Cal. 3820 - 643

This Automatic model from 1971 features a 42mm Titanium case. It features a Cream dial protected by a Acrylic crystal and offers 200m of water resistance. [seikata-wm-d574d4d2f4c8]

Also known as: Turtle, Golden Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

42mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

Cream

Jewels

20j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1971

Related Models

• Seiko 4454-405
• Seiko 7087-980
• Seiko 6154-936
• Seiko 4497-694
• Seiko 5297-177
• Seiko 6631-473
• Seiko 0777-322
• Seiko 5233-440
• Seiko 6650-163
• Seiko 5212-315
• Seiko 7042-833
• Seiko 6373-713