Seiko Cal. 5638 - 241

The Seiko 5638-241 represents an important milestone in Seiko's 1999 lineup. It features a Green dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-a29675a56e0b]

Also known as: Helmet, Arnie

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

9.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Green

Jewels

23j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1999

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