Seiko Cal. 4520 - 648

The 4520-648 is a sought-after Automatic piece from Seiko's golden era. It features a Silver dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-34ae17e54f21]

Also known as: Sumo, Rally

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Silver

Jewels

17j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1969

Related Models

• Seiko 6333-520
• Seiko 0775-170
• Seiko 5269-775
• Seiko 5621-550
• Seiko 7192-363
• Seiko 6620-761
• Seiko 7169-607
• Seiko 0793-325
• Seiko 7196-141
• Seiko 4490-934
• Seiko 6214-906
• Seiko 6116-595