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Seiko

1986 Seiko Sports 150 7A38-713A with charcoal chronograph dial, gold-tone markers and day-date display

Seiko Caliber 7A38: Quartz Chronograph Movement Guide

1986 Seiko Sports 150 7A38-713A with charcoal chronograph dial, gold-tone markers and day-date display
1980s

Seiko Caliber 7A38: Quartz Chronograph Movement Guide

Explore Seiko 7A38 chronograph specs, functions and day-date controls, with original VWS 1984–1986 watch examples.

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Seiko SQ 7545-7030 from 1979, silver analog dial with SQ emblem and date, shown on its original steel bracelet
1970s

Seiko SQ: History, Models & Quartz Technology

Discover Seiko SQ quartz history and the differences between 1970s–1990s Seiko SQ watches, illustrated with five original vintage examples.

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