Seiko Cal. 5665 - 540

Released in 1999, the Cal. 5665 with design code 540 was part of Seiko's domestic market collection. Powered by the 5665 caliber with 20j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-5cf9eba138ab]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1999

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