Seiko Cal. 0740 - 633

The 0740-633 is a sought-after Hand-Winding piece from Seiko's golden era. It features a White dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-ee5de953a793]

Also known as: Rally, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

14.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

White

Jewels

20j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1966

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