Seiko Cal. 6613 - 978

Seiko 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

Related Models

seikata-wm-45585edf1b76