Seiko Cal. 4542 - 681

Seiko 4542-681

The Seiko 4542-681 represents an important milestone in Seiko's 1976 lineup. Powered by the 4542 caliber with 26j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-d53369433250]

Also known as: Helmet, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
36mm
Case Thickness
9.3mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
180m
Dial Color
Navy
Jewels
26j
Frequency
28,800 bph
Power Reserve
55 hours
Year
1976

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seikata-wm-d53369433250