Seiko Cal. 4565 - 661

Released in 1988, the Cal. 4565 with design code 661 was part of Seiko's domestic market collection. Powered by the 4565 caliber with 30j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-bf2ab5ac412e]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1988

Related Models

• Seiko 0778-600
• Seiko 5242-487
• Seiko 4599-443
• Seiko 6153-986
• Seiko 7119-543
• Seiko 7016-361
• Seiko 5637-345
• Seiko 6116-964
• Seiko 4547-779
• Seiko 4546-587
• Seiko 5611-591
• Seiko 5279-617