This Seiko watch has already been sold.

Seiko Chronograph SQ100 with Alarm Function, Japan, c. 1990s

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Basic Info

Code 1180-45
Movement Quartz
Case material Steel
Bracelet material Steel
Condition 1 (mint)
Gender Men's watch/Unisex
Location Germany, Berlin
Price 190 € (= [SOLD])
Availability On request


Movement Quartz


Case material Steel
Case diameter 40 mm
Thickness 9 mm
Dial White
Dial numerals Arabic numerals


Bracelet material Steel
Lug width 20 mm Size guide
Clasp Fold clasp
Clasp material Gold/Steel


Chronograph, Date, Alarm, Tachymeter


Luminescent Hands


Seiko Chronograph SQ100 with alarm function
Japan, c. 1990s
Quartz movement; hour, minute, second, chronograph, date, tachymeter
White dial, line indices, outer minute ring with Arabic numbers as well as outer tachymeter-ring, three sub-dials for chronograph registers, sweep second and alarm, blue luminescent hands
Watch case, crown, strap and folding clasp of stainless steel, bezel of gold-colored metal
Hallmarked on the caseback
Watch case no.: 077020
Enclosed within grey Seiko watch box
Watch case diameter: 40 mm; Height: 9 mm
Length of strap: c. 17.5 cm; Lugs width: 20 mm
Total weight: c. 109.3 g
Function not tested, since battery has to be replaced; very good condition with minimal traces of wear; Overhaul recommended at buyer’s expense
Condition:The wristwatch is in a very good condition with minimal traces of wear. The crystal with protective film. The watch case diameter measures 40 mm, the height is 9 mm. The length of the strap measures c. 17.5 cm and the lugs width is 20 mm. The total weight is c. 109.3 g. The timepiece was not tested on functionality, since the battery has to be replaced.; no guarantee on long term precision and regularity. (nlu)Size and weight may deviate from the manufacturer’s indication. All watches are hand-measured and weighed.Overhaul recommended at buyer’s expense.Should this lot contain property from endangered species, these elements will not be shipped. This only applies to prospective non-EU customers if a species conservation certificate is missing.

No guarantee on time keeping accuracy and duration.

Auction ADDRESS: HAVELSTUDIOS Atelier 1 Havelchaussee 161 14055 Berlin
Tel: +49 30 9832 0221, Email:

Every sale will be subject to a buyer's premium of 29,75% (incl. VAT).
If you cannot attend the auction in person then you can request a telephone line or leave an absentee bid (maximum bid).
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All descriptions and condition reports are solely our own opinion and made by our experts.
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Germany: EUR 20,00
European Union: EUR 35,00
Outside of European Union: EUR 95,00
Rest of the World: EUR 105,00
Shipping costs excl. statutory VAT and plus 2,5% (+VAT) shipping insurance

T: +49 30 9832 0221

Size guide for wristbands

1 | Lug width

The lug width is the width of the strap at the end that is attached to the watch. This is the interior distance between the two lugs (horn-like protrusions) on the watch casing. The strap will fit your watch only if the lug width of the watch is the same width as the strap.

2 | Buckle width

The buckle width is the width of the strap at the buckle end. If you want to keep your watch’s original buckle and replace only the strap, the width of the original buckle must be identical to the strap width. For watches with folding clasps, please choose a strap specially made for your particular clasp.

3 | Strap length

The strap length is the combined length of the short strap side 3A (without buckle) and the long strap side 3B. For metal straps, the length of the strap including the clasp is measured in the closed position.

4 | Strap thickness

Strap thickness is the height of the strap. Many leather straps thin out towards the buckle end, or “taper”. If you want to keep your watch’s original buckle and replace only the strap, the strap thickness must match the height of the original buckle. For watches with folding clasps, please choose a strap specially made for your particular clasp.