Seiko Cal. 6646 - 402

The 6646-402 is a sought-after Spring Drive piece from Seiko's golden era. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-ce8ecef98013]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

12.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Burgundy

Jewels

30j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1973

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