Seiko 8L34

	Brand:	Seiko, Shizukuishi Watch Studio
	Family:	Seiko 9S5x Family
	Height:
	Jewels:	20
	Reserve:	hours
	Frequency:	28,800 A/h
	Winding:	Hand winding
	Diameter:
	Complications:
	Hands:	Central Hour Hand, Central Minute Hand, Lépine Small Seconds Hand, Small Seconds Hand at 9:00

Distinguishing Technical Characteristics
Hand-Winding Clockwise Balance Cock Screw Regulator Balance Balance at 1:30
Production: 2000 – 2000
1910s	1920s	1930s	1940s	1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s

Cal. 8L34 is a rare hand-winding pocket watch movement used only in the 2000 Seiko Historical Collection limited edition watch. It is derived from the Grand Seiko Cal. 9S54 but has small seconds in the “lépine” location, opposite the winding crown. It is highly unusual for a pocket watch movement, running at 28,800 A/h and quite small at 12.5 ligne (28.40 mm) in diameter. Cal. 8L34 was constructed at Seiko’s Shizukuichi Watch Studio along with Grand Seiko movements.