MIYOTA/CITIZEN Caliber 1L02 Quartz Movement

Quantity	Discount (%)	Price
1 - 2	—	$5.00
3 - 4	5 %	$4.75
5 - 9	7 %	$4.65
10 - 14	10 %	$4.50
15+	15 %	$4.25

Quantity

Discount (%)

Price

1 - 2

—

$5.00

3 - 4

5 %

$4.75

5 - 9

7 %

$4.65

10 - 14

10 %

$4.50

15+

15 %

$4.25

Product Description

This is a genuine MIYOTA (Citizen) 1L02 quartz movement, measuring 6 3/4 x 8 ligne (approx. 15.3×17.8mm) with a thickness of 2.95mm – a compact rectangular movement widely used in mid‑to‑high‑end fashion watches, ladies‘ watches, and dress watches. It features hour, minute, and center seconds hands, as well as a complete day‑date calendar display at the 3 o’clock position.

The movement comes with an original winding stem included and is packaged in SOFLY anti‑static, moisture‑resistant material for safe handling. A battery is NOT included; a new SR621SW or 364 cell is required. As a brand‑new, genuine Japanese‑made movement, it is the ideal replacement for the discontinued 1L02 series or for servicing identical calibers.

Features & Function

Genuine OEM: Factory‑made by MIYOTA / Citizen Group – a brand‑new, reliable quartz movement.

Compact dimensions: 6 3/4 x 8 ligne (approx. 15.30mm x 17.80mm), 2.95mm thick – ideal for narrow case designs.

Multi‑function: Drives hour, minute and center seconds hands, plus full day & date display at 3 o‘clock. Day/date discs are white with black numerals.

Power supply: Uses SR621SW / 364 battery. Typical battery life is 2 years (some sources state ~3 years).

Hand sizing (critical):

Hour hand: 1.20mm
Minute hand: 0.70mm
Seconds hand: 0.17mm. Using incorrect sizes will damage the motion work.

Included accessories: Stem included; shipped in SOFLY anti‑static soft foam tray. Battery NOT included.

FAQ

Q1: The movement does nothing after I installed a new battery.
A: First, ensure the battery is an SR621SW (364) and that the positive (+) side is facing the correct contact. Briefly short the battery contacts with tweezers for 1‑2 seconds to “wake up” the movement. If still dead, inspect the circuit for moisture spots or cracks. New movements can occasionally need a quick power cycle to start.

Q2: The stem feels gritty or hard to pull after casing.
A: Check the stem length; there should be 0.2‑0.5 mm clearance between the stem shoulder and the case tube when the crown is pushed fully in. Clean the case tube and apply a very thin layer of silicone grease. If a crown with a spring or a tube with a stuffing ox is used, make sure it is correctly seated.

Q3: After fitting the hands, the seconds hand runs erratically or stops.
A: If the battery is fresh, first check that the tip of the seconds hand is not touching the inside of the crystal and that there is adequate clearance between the seconds and minute hands. Also, the stem may be inserted too deeply, causing metal contacts to touch the circuit board. Verify that the stem length is correct (0.2‑0.5 mm clearance).