Seiko Cal. 5616 - 424

This Solar model from 1981 features a 40mm Titanium case. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-3db309cde549]

Also known as: Sea Horse, Flighty

Specifications

Movement

Solar

Case Material

Titanium

Case Width

40mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Black

Jewels

29j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1981

Related Models

• Seiko 6152-430
• Seiko 7071-668
• Seiko 6669-865
• Seiko 6158-991
• Seiko 6380-591
• Seiko 4538-911
• Seiko 3818-833
• Seiko 6376-998
• Seiko 6166-743
• Seiko 6659-942
• Seiko 7143-444
• Seiko 6193-477