Seiko Cal. 5644 - 365

The 5644-365 is a sought-after Spring Drive piece from Seiko's golden era. It features a Silver dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-a6b68b6ad13e]

Also known as: Rally

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

28j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1975

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