Seiko Cal. 6630 - 773

The 6630-773 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6630 caliber with 23j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-87cbfc071516]

Also known as: Sumo, Navigator

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

12.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

White

Jewels

23j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1978

Related Models

• Seiko 5223-814
• Seiko 6370-273
• Seiko 0719-943
• Seiko 7085-166
• Seiko 4457-662
• Seiko 3871-326
• Seiko 0724-805
• Seiko 5610-859
• Seiko 5629-246
• Seiko 7184-414
• Seiko 5642-946
• Seiko 6369-125