Seiko Cal. 4540 - 238

Released in 1965, the Cal. 4540 with design code 238 was part of Seiko's domestic market collection. With its 22mm lug width and 11.8mm profile, it sits comfortably on most wrists. [seikata-wm-ee4567ebd884]

Also known as: Rally, Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Silver

Jewels

34j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1965

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