Seiko Cal. 6621 - 257

The Seiko 6621-257 represents an important milestone in Seiko's 1993 lineup. It features a Navy dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-353bc9b55dc5]

Also known as: Flighty

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1993

Related Models

• Seiko 4559-376
• Seiko 6137-465
• Seiko 6257-157
• Seiko 5280-144
• Seiko 3893-312
• Seiko 7032-567
• Seiko 7082-985
• Seiko 6372-187
• Seiko 7181-225
• Seiko 5626-745
• Seiko 6298-963
• Seiko 7156-112