Seiko Cal. 5231 - 378

This Spring Drive model from 1994 features a 34mm Titanium case. With its 22mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-87b27a79d0b0]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

12.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

White

Jewels

35j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1994

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