Seiko Cal. 0731 - 609

The 0731-609 is a sought-after Spring Drive piece from Seiko's golden era. With its 20mm lug width and 15.8mm profile, it sits comfortably on most wrists. [seikata-wm-0260a5af0042]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Black

Jewels

21j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1979

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