Seiko Cal. 3827 - 537

The Seiko 3827-537 represents an important milestone in Seiko's 1971 lineup. Powered by the 3827 caliber with 33j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-f44d58185976]

Also known as: Helmet, Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

White

Jewels

33j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1971

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