Seiko Cal. 5646 - 836

The 5646-836 is a sought-after Solar piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-650bbb16f1fa]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

40mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1990

Related Models

• Seiko 6358-960
• Seiko 5613-817
• Seiko 6324-603
• Seiko 6364-863
• Seiko 3815-564
• Seiko 6655-987
• Seiko 3832-800
• Seiko 6213-807
• Seiko 4565-709
• Seiko 4476-200
• Seiko 7018-337
• Seiko 6161-803