Seiko Cal. 6613 - 978

This Spring Drive model from 1998 features a 44mm Stainless Steel case. Powered by the 6613 caliber with 34j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-45585edf1b76]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

10.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

60m

Dial Color

Silver

Jewels

34j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1998

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