Seiko Cal. 7021 - 389

The 7021-389 is a sought-after Solar piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-1f9756bc9cab]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

8.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1977

Related Models

• Seiko 6150-555
• Seiko 6629-395
• Seiko 6672-257
• Seiko 5686-299
• Seiko 6187-168
• Seiko 7024-101
• Seiko 6617-468
• Seiko 7042-127
• Seiko 6127-755
• Seiko 6212-230
• Seiko 6112-101
• Seiko 3851-276