Seiko Cal. 5640 - 773

Released in 1996, the Cal. 5640 with design code 773 was part of Seiko's domestic market collection. It features a Navy dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-44cbbcb1fa07]

Also known as: Bullhead, Arnie

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

8.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1996

Related Models

• Seiko 6621-760
• Seiko 4534-260
• Seiko 3863-880
• Seiko 6144-497
• Seiko 5648-482
• Seiko 7187-967
• Seiko 4458-526
• Seiko 4525-376
• Seiko 6619-488
• Seiko 6142-643
• Seiko 3864-984
• Seiko 5235-258