Significant Accounting Policies (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 29, 2012 segment	Dec. 31, 2011	Jan. 01, 2011
Significant Accounting Policies [Line Items]
Depreciation expense	$ 4,982,000	$ 5,280,000	$ 5,404,000
Number of reporting units	2
Current portions of accrued warranty costs	400,000	500,000
Costs of marketing support including advertising	13,800,000	13,700,000	12,300,000
Accrued marketing support expenses	$ 2,500,000	$ 2,300,000
Minimum percentage of tax benefit sustaining review resulting in recording of liability benefit	50.00%
Accessories [Member]
Significant Accounting Policies [Line Items]
Product warranty period	1 year
Timepieces [Member]
Significant Accounting Policies [Line Items]
Product warranty period	2 years
Interest Rate Swaps [Member]
Significant Accounting Policies [Line Items]
Interest rate on portion of the Company's line of credit	1.20%
Maximum [Member] | Foreign Exchange Contracts [Member]
Significant Accounting Policies [Line Items]
Maximum term of foreign currency derivative contracts	3 months
Deposited With One Financial Institution [Member]
Significant Accounting Policies [Line Items]
Percentage of cash and cash equivalents	31.00%	40.00%