Seiko Cal. 3865 - 307

The Seiko 3865-307 represents an important milestone in Seiko's 1973 lineup. It features a Green dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-a4e6dad602f8]

Also known as: Turtle, Baby Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

42mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Green

Jewels

17j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1973

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