Seiko Cal. 5640 - 475

The 5640-475 is a sought-after Automatic piece from Seiko's golden era. It features a Green dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-502fa1ca4c89]

Also known as: Helmet, Flighty

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

42mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1986

Related Models

• Seiko 5636-604
• Seiko 4496-895
• Seiko 6223-575
• Seiko 6149-807
• Seiko 5620-251
• Seiko 6234-795
• Seiko 6389-689
• Seiko 6672-725
• Seiko 5668-906
• Seiko 4420-387
• Seiko 5259-440
• Seiko 5611-964