Seiko Cal. 0774 - 331

The 0774-331 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0774 caliber with 17j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-02ab9f39587a]

Also known as: World Timer, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

8.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1973

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