Seiko Cal. 5644 - 103

Released in 1975, the Cal. 5644 with design code 103 was part of Seiko's domestic market collection. It features a Silver dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-1f3e720b91fb]

Also known as: Pogue, Navigator

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

21j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1975

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