13 mm

August 18, 2026

1978 Seiko 7548-700f

Seiko added a circuit board and battery hatch. Up for consideration is a 1978 Seiko 7548-700F. All original in great shape. The Seiko recently had gaskets and seals replaced, new battery, and new 2.5 fat spring bars.
August 18, 2026

1978 Seiko 7548-700f

Seiko added a circuit board and battery hatch. Up for consideration is a 1978 Seiko 7548-700F. All original in great shape. The Seiko recently had gaskets and seals replaced, new battery, and new 2.5 fat spring bars.
August 18, 2026

1978 Seiko 7548-700f

Seiko added a circuit board and battery hatch. Up for consideration is a 1978 Seiko 7548-700F. All original in great shape. The Seiko recently had gaskets and seals replaced, new battery, and new 2.5 fat spring bars.