**TECHNICAL FEATURES**
Sigena (group Chronographe Suisse) Chrronograph Diver "Superwaterproof", Water resistance 200MT.
Case: diameter 38mm excluding winding crown, all stainless steel, screw back.
Movement Landeron 148
Features
manual-wind chronograph, 60s, 30/45min, cam switched
sub second
Data
13.75''', Dm= 31mm
H= 6.2mm
17 jewels
f = 18000 A/h
power reserve 42h
Remarks
1937-1970, >3.500.000 (all derivatives based on Landeron 48)
There were various chrono mechanisms. And as their parts often were interchangable, occasionally series were produced with parts of different calibres.
family:
148: 13.75'''
154: 14'''
185: 13.75''', calendar
186: 13.75''', calendar, moon phase
