Seiko Cal. 6642 - 684

This Hand-Winding model from 1971 features a 35mm Stainless Steel case. It features a Blue Sunburst dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-24b25731a571]

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

14.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1971

Related Models

• Seiko 6131-303
• Seiko 7039-397
• Seiko 7013-487
• Seiko 6385-777
• Seiko 3851-564
• Seiko 6332-263
• Seiko 3824-603
• Seiko 7175-892
• Seiko 4533-230
• Seiko 5610-530
• Seiko 0799-306
• Seiko 6615-379