Seiko Cal. 3821 - 970

The 3821-970 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-d196f9044e0d]

Also known as: World Timer, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

14.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

200m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1975

Related Models

• Seiko 6674-785
• Seiko 7031-591
• Seiko 4418-807
• Seiko 5694-129
• Seiko 6275-329
• Seiko 6262-604
• Seiko 6318-916
• Seiko 7093-651
• Seiko 6283-417
• Seiko 7060-459
• Seiko 5613-638
• Seiko 4539-600