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Some specifications for this reference are on file; the record is incomplete.

Seiko · Prospex

Turtle

Ref. 6306-7001

discontinuedJDM cushion diverPartially documentedLast reviewed Not yet reviewed

Overview

Production
1976–1982
Era
JDM cushion diver
Status
discontinued

Case

Case diameter
44mm
Lug width
22mm
Case material
Stainless steel
Construction
Cushion case, crown at 4
Bezel
Unidirectional 60-minute
Crystal
Hardlex
Crown
Screw-down crown at 4
Caseback
Screw-down with a tsunami (wave) medallion
Water resistance
150m

Dial & Hands

Dial
Black
Dial text
Japanese-market dial
Hands
Baton hour and minute, lollipop seconds
Lume
Tritium
Lume type
Tritium

Movement

Movement
Automatic
Caliber
6306A
Manufacturer
Seiko (Suwa Seikosha)
Winding
automatic
Frequency
21,600 vph
Jewels
21
Complications
Day-date with a Kanji/English day wheel, hacking seconds