This is the original stainless steel folding-clasp for many Seiko vintage models, among others for the '5 Hands' Flyback Chronograph. 

See the list below for suitable model- & case-numbers.

This Seiko clasp is suitable for among others the following case numbers:

7A28-7030, 7A28-703A, 7A28-7039, 6139-6000

7016-5011, 7016-5020, 7016-8000, 7016-8001, 7016-5000, 7016-5001, 7016-7000, 

7T92-0BA0, 7C43-7000, 7C43-700A, A158-5060, A158-5069, 5H23-7A80

Related models:

WBZ001J1, WBZ001, WBZ013J1, WBZ013, WBZ021J1, WBZ021, WBZ005, WBZ007, WBZ025, WBZ027, WBZ029, WBZ031, S23153J1, S23153, WFW011J1, WFW009, WFW010, WFW015J1, SBG051

Do you have any questions about this deployment-clasp or would you like to order another clasp that's not on our website?

Don't hesitate to contact us then we'll help as soon as possible!