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Seiko 1104A

 

Seiko 1104ASeiko 1104A

Description

Seiko handwound movements are rather rare in Europe. Even more rare are those tiny form movement, which even contain a center second indication. Such a movement is the Caliber 1104A, which shows the high quality even of simpler Seiko movements.
The large balance with four legs is beared in an inhouse Diashock system and some of the jewels are located in chatons.

 

 

 Technical data

ManufacturerSeiko
Caliber1104A
Number of jewels17
EscapementAnchor with pallets
Shock protection(s)Diashock (Seiko)
Balance cock directioncounterclockwise
Hairspring studmoveable
Regulator typeHairspring key
Movement constructionFork
Escapement wheel, Fourth wheel, Third wheel, Center wheel
Center second pinion
Mainspring barrel
FeaturesSCI
FunctionsHour, minute, second
Beats per hour21600
Size53/4 x 63/4'''
Seiko 1104ASeikoSeiko1104A5 3/4 ''' 6 3/4''''''Seiko 1104A17 Jewels, 5 3/4 x 6 3/4'''''', 21600 A/h, SCI
Factsheet

 

 

Usage gallery

Seiko ladies' watchSeiko ladies' watch