1970 Tissot Seastar Eletronic
Brand
Tissot
Series
Seastar
Catalogue Reference
Eletronic 652-40604-01
Production Year
1970
Movement Type
Dynotron (electronically controlled balance wheel)
Style
Dress Watch
Date
A feature that displays the current day of the month, typically in a small window on the dial, commonly placed at the 3 o'clock or 6 o'clock position.
Electronic
A watch powered by an electronic movement, usually requiring a battery to operate, with functions that may include digital time displays and advanced features.
Gold Plated 20 ㎛
A 20-micron gold-plated finish on the watch, offering an alternative to solid gold while still providing a gold-like appearance.
Movement with production number 12367960, dating the watch back to 1970
Case
Diameter
36 mm
Thickness
9 mm
Material
14K Gold Plated (20 ㎛) - Stainless Steel backcase
Water Resistance
Water Resistant
Finishing Details
-
Bezel
Without bezel
Crown Type
Push/Pull
Crystal
Acrylic
Caseback
Without decoration
Dial
Color
Gold
Dial Markers
Dagger Indeces
Finishing Details
Pan Dial
Luminiscent Indexes
Markers around the dial (Trititum)
Calendar
Date display at 3 o'clock position
Bracelet
Material
Crocodile Leather
Buckle Type
Folding Clasp
Width
19 mm
Color
Black
ETA-ISA 9154 Dynotron
Launched in 1967, the ESA 9150 Dynotron was the first movement with a balance and a transistor assemble in the same caliber, running at 21,600 A/h.
The ESA 9154 is an updated version launched in 1970, having the date function and an increased frequency of 28,800 A/h.
Both the ESA 9150 and ESA 9154 look very similar.
Manufacturer
ETA-ISA (Swiss Made)
Model
9154 Dynotron
Type
Eletronic
Frequency
28800 A/h
Jewels
13 (Thriteen) Jewels
Battery
343 (original, mercury), 344 (current replacement)
Functions
Date, Hours, Minutes, Sweep Seconds
