Seiko Cal. 6681 - 320

The 6681-320 is a sought-after Automatic piece from Seiko's golden era. It features a Navy dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-cfb58da685c8]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

38mm

Case Thickness

14.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

35j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1968

Related Models

• Seiko 4511-985
• Seiko 6373-930
• Seiko 0778-618
• Seiko 5239-308
• Seiko 4483-240
• Seiko 5224-809
• Seiko 6616-266
• Seiko 4484-510
• Seiko 6344-921
• Seiko 6119-651
• Seiko 6652-867
• Seiko 5699-577