Seiko Cal. 7021 - 646

The 7021-646 is a sought-after Automatic piece from Seiko's golden era. It features a Black dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-7769b81f9b40]

Also known as: Bellmatic

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

35mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Black

Jewels

25j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1967

Related Models

• Seiko 5248-143
• Seiko 7137-395
• Seiko 6399-958
• Seiko 6648-298
• Seiko 5213-200
• Seiko 6162-565
• Seiko 0778-242
• Seiko 0750-460
• Seiko 6136-439
• Seiko 6351-533
• Seiko 6672-668
• Seiko 4522-672