Seiko Cal. 7021 - 931

The Seiko 7021-931 represents an important milestone in Seiko's 1973 lineup. With its 22mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-4b66abe2e688]

Also known as: Silverwave

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

39mm

Case Thickness

11.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Silver

Jewels

26j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1973

Related Models

• Seiko 5239-710
• Seiko 6328-481
• Seiko 7156-808
• Seiko 5674-899
• Seiko 6169-342
• Seiko 6386-597
• Seiko 5615-608
• Seiko 3868-662
• Seiko 6366-593
• Seiko 4478-144
• Seiko 7171-709
• Seiko 4443-211