Seiko Cal. 5231 - 380

The Seiko 5231-380 represents an important milestone in Seiko's 1973 lineup. It features a Silver dial protected by a Mineral crystal and offers 110m of water resistance. [seikata-wm-86f7240d5b76]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

13.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

110m

Dial Color

Silver

Jewels

26j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1973

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