Seiko Cal. 0723 - 542

The Seiko 0723-542 represents an important milestone in Seiko's 1965 lineup. Powered by the 0723 caliber with 35j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-d93c4277ad73]

Also known as: Tuna, Bullhead

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

14.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Silver

Jewels

35j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1965

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