Seiko Cal. 5654 - 412

The Seiko 5654-412 represents an important milestone in Seiko's 1978 lineup. It features a White dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-7b5dabe79a99]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

White

Jewels

24j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1978

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