Seiko Cal. 5646 - 864

Released in 1969, the Cal. 5646 with design code 864 was part of Seiko's domestic market collection. It features a Navy dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-c87fd821fe74]

Also known as: Turtle

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Navy

Jewels

29j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1969

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