Seiko Cal. 5241 - 678

The 5241-678 is a sought-after Spring Drive piece from Seiko's golden era. With its 20mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-0b39c7dc2bd4]

Also known as: Helmet, Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

34mm

Case Thickness

13.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

White

Jewels

35j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1991

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