Seiko Cal. 4577 - 940

This Hand-Winding model from 1997 features a 37mm Hardlex-Coated Steel case. It features a Navy dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-9edd172b69d8]

Also known as: Panda, Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

9.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Navy

Jewels

21j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1997

Related Models

• Seiko 7174-117
• Seiko 6380-952
• Seiko 6314-618
• Seiko 0735-268
• Seiko 0727-719
• Seiko 4460-771
• Seiko 6373-742
• Seiko 6635-962
• Seiko 3868-173
• Seiko 5242-846
• Seiko 6663-287
• Seiko 5270-563