Seiko Cal. 5241 - 638

The Seiko 5241-638 represents an important milestone in Seiko's 1966 lineup. With its 22mm lug width and 11.0mm profile, it sits comfortably on most wrists. [seikata-wm-61b951a98d02]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

11.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Silver

Jewels

23j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1966

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