Seiko Cal. 5644 - 394

The 5644-394 is a sought-after Spring Drive piece from Seiko's golden era. With its 19mm lug width and 10.8mm profile, it sits comfortably on most wrists. [seikata-wm-c9f41cfd3aa5]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Green

Jewels

30j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1982

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