Seiko Cal. 5644 - 239

The Seiko 5644-239 represents an important milestone in Seiko's 1996 lineup. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-72eb1aff54de]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

8.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Silver

Jewels

24j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1996

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