Seiko Cal. 5621 - 503

This Hand-Winding model from 1993 features a 38mm PVD Black case. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-07e9ac34ed40]

Also known as: Crown, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Cream

Jewels

25j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1993

Related Models

• Seiko 6630-186
• Seiko 3878-171
• Seiko 4591-153
• Seiko 4491-395
• Seiko 0712-462
• Seiko 5235-681
• Seiko 5686-140
• Seiko 0738-995
• Seiko 5286-824
• Seiko 4457-920
• Seiko 3849-950
• Seiko 4477-871