Seiko Presmatic Hi-Beat Automatic Silver Linen Day-Date 1970 39mm

Watch Summary

This Seiko Presmatic Hi-Beat is a characterful March 1970 example with a distinctive silver linen dial, original 30-jewel calibre 5146 automatic movement and the clever Presmatic crown-operated quickset day-date system that defines the model.

This collector-led example retains its original dial, hands, crystal, case, case back and movement, with the original Presmatic crown present. Patina to the linen dial adds honest vintage character. It is fitted on a new replacement leather strap. Replacement components are clearly disclosed below.

TickerWorks Assurance

Passed the TickerWorks 48-hour run test and time check, with the day-date and quickset functions operating correctly. Timegrapher snapshot at the time of testing: -22 seconds/day, 197° amplitude and 1 ms beat error.

Condition & Originality

Originality: Original silver linen dial, original hands, original mineral-glass crystal, original case, original case back and original Seiko calibre 5146 30-jewel automatic movement. Original Presmatic crown fitted.

Replacement Components: Fitted on a new replacement leather strap.

Condition: Patina to the linen dial. The movement is noted as very clean.

Bracelet or Strap: Supplied on a new premium leather strap.

Specifications

• Brand: Seiko
• Model: Seiko Presmatic Hi-Beat
• Movement: Seiko calibre 5146 automatic, 30 jewels
• Case size: 39 mm
• Dial: Silver Linen
• Period: 1970
• Case back: Original case back
• Crown: Original Presmatic crown fitted with smooth operation
• Strap: New premium leather strap, replacement
• Functions: Automatic, day-date, quickset day-date
• Testing: TickerWorks 48-hour run test and time check passed

Historical Context

The Seiko Presmatic used the 51-series movement family developed by Daini Seikosha, and the calibre 5146 was the hi-beat Presmatic variant introduced in 1969. Enthusiasts value these watches for their textured dials, sharp late-1960s styling and the distinctive quickset date system operated through the crown, which gave the Presmatic line its name.

TickerWorks Strap & Bracelet Policy

TickerWorks may supply a replacement or period-correct bracelet or strap where the original is not available or no longer suitable for use. Any replacement is clearly stated in the description. All bracelets and straps are fitted for presentation and checked for secure attachment only.

TickerWorks does not offer bracelet adjustment services. Final sizing should be carried out by a qualified watchmaker.

Notes & Caveats

Photos form part of the description.

Water resistance is not guaranteed.

Timekeeping performance is in line with accepted vintage mechanical tolerance (approximately ±1 minute per day).

Service history is unknown unless stated.