Seiko Cal. 6616 - 400

The 6616-400 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Black dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-0ea88e9bc4cf]

Also known as: Golden Tuna, Emperor

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

38mm

Case Thickness

13.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Black

Jewels

19j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1968

Related Models

• Seiko 6365-471
• Seiko 4429-557
• Seiko 3898-397
• Seiko 7011-734
• Seiko 6369-932
• Seiko 6311-733
• Seiko 7067-353
• Seiko 4447-180
• Seiko 3820-940
• Seiko 6381-132
• Seiko 6382-231
• Seiko 4572-452