Seiko Cal. 5648 - 441

The Seiko 5648-441 represents an important milestone in Seiko's 1970 lineup. With its 22mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-08fd3c5d4c5b]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Silver

Jewels

18j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1970

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