Seiko Cal. 5674 - 663

The Seiko 5674-663 represents an important milestone in Seiko's 1965 lineup. It features a Green dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-f024a0e7eb27]

Also known as: Sea Horse, Crown

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

150m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1965

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