Seiko 8F35A - Technical Guide
The Seiko 8F35A is a high-precision quartz movement introduced in the late 1990s, combining Seiko’s perpetual calendar technology with a second time zone (GMT) hand. Part of the elite 8F series, it offers ±20 seconds/year accuracy, 10-year battery life, and automatic date correction through February 28, 2100. This movement was aimed at frequent travelers and professionals who required dual-time functionality in a traditional analog watch format.
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