Seiko Cal. 6620 - 609

Released in 1975, the Cal. 6620 with design code 609 was part of Seiko's domestic market collection. It features a White dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-578ca9363e50]

Also known as: Helmet, Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

160m

Dial Color

White

Jewels

33j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1975

Related Models

• Seiko 4485-365
• Seiko 5663-254
• Seiko 7091-883
• Seiko 7018-148
• Seiko 6699-930
• Seiko 4584-326
• Seiko 6128-608
• Seiko 3841-857
• Seiko 4525-301
• Seiko 3842-787
• Seiko 0739-268
• Seiko 6272-380