Seiko Cal. 5618 - 507

The 5618-507 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5618 caliber with 36j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-e27446d985d4]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Black

Jewels

36j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1976

Related Models

• Seiko 6294-141
• Seiko 5654-448
• Seiko 6128-405
• Seiko 6313-624
• Seiko 3850-504
• Seiko 6140-163
• Seiko 4432-926
• Seiko 6186-273
• Seiko 7076-609
• Seiko 6371-660
• Seiko 6634-544
• Seiko 5262-575