Seiko Cal. 5618 - 988

The 5618-988 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5618 caliber with 17j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-126195ead6f8]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

14.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

17j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1989

Related Models

• Seiko 7175-427
• Seiko 7017-564
• Seiko 4541-673
• Seiko 7189-304
• Seiko 7120-970
• Seiko 6148-765
• Seiko 0729-937
• Seiko 5213-838
• Seiko 5263-350
• Seiko 6128-309
• Seiko 4435-224
• Seiko 6236-385