Seiko Cal. 4540 - 620

The 4540-620 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4540 caliber with 33j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-a216398234d7]

Also known as: Pogue, Helmet

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Champagne

Jewels

33j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1967

Related Models

• Seiko 6264-609
• Seiko 4455-740
• Seiko 6330-712
• Seiko 7070-569
• Seiko 6698-297
• Seiko 6124-785
• Seiko 0727-287
• Seiko 4454-455
• Seiko 6243-701
• Seiko 3865-406
• Seiko 6635-789
• Seiko 5297-811