Seiko Cal. 5641 - 154

Released in 1976, the Cal. 5641 with design code 154 was part of Seiko's domestic market collection. It features a Burgundy dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-2af56812ad4e]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

13.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Burgundy

Jewels

20j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1976

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