Seiko Cal. 5648 - 903

The Seiko 5648-903 represents an important milestone in Seiko's 1974 lineup. It features a Navy dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-77cbff137bf9]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1974

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