Seiko Cal. 6621 - 337

Released in 1982, the Cal. 6621 with design code 337 was part of Seiko's domestic market collection. It features a Silver dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-0a7dd89defa4]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

13.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

26j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1982

Related Models

• Seiko 4577-130
• Seiko 6155-872
• Seiko 4487-820
• Seiko 3856-470
• Seiko 6260-615
• Seiko 6379-924
• Seiko 6276-481
• Seiko 4439-160
• Seiko 0790-638
• Seiko 3863-810
• Seiko 6666-497
• Seiko 6276-943