Seiko Cal. 6646 - 201

The 6646-201 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Black dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-c1cf7f6d9766]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

15.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Black

Jewels

26j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1986

Related Models

• Seiko 6384-821
• Seiko 0723-250
• Seiko 4581-710
• Seiko 5247-616
• Seiko 7144-288
• Seiko 3845-309
• Seiko 7146-114
• Seiko 5278-609
• Seiko 6286-371
• Seiko 7185-461
• Seiko 6150-592
• Seiko 5227-449