Seiko Cal. 6661 - 304

The 6661-304 is a sought-after Solar piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-281e4f2dee09]

Also known as: Rally, Sportsmatic

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1977

Related Models

• Seiko 0733-257
• Seiko 5672-470
• Seiko 7172-210
• Seiko 3883-544
• Seiko 0784-792
• Seiko 3860-666
• Seiko 4513-161
• Seiko 6397-652
• Seiko 6224-429
• Seiko 5661-319
• Seiko 6627-720
• Seiko 5659-100