Seiko Cal. 5681 - 403

Released in 1967, the Cal. 5681 with design code 403 was part of Seiko's domestic market collection. It features a Green dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-864a5e47c68f]

Also known as: Shogun, UFO

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

14.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Green

Jewels

19j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1967

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