Seiko Cal. 6645 - 703

This Hand-Winding model from 1992 features a 45mm PVD Black case. It features a Silver dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-7c2f64edd643]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

14.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

25j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1992

Related Models

• Seiko 4554-497
• Seiko 5656-560
• Seiko 7139-556
• Seiko 7042-491
• Seiko 4462-546
• Seiko 7086-757
• Seiko 6344-416
• Seiko 0740-115
• Seiko 6317-238
• Seiko 6650-643
• Seiko 6334-360
• Seiko 3814-654